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Small edits to user manual V4.7
Small edits, typos and responses to comments of other developers. One image replaced. Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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@ -536,7 +536,7 @@ address and its pairing status. For BTLE devices the address often starts with "
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If the device is not paired and has a red
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background color, a context menu can be opened by selecting the item with a
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right-click.
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Select the the _Pair_ option and wait for the task to complete. If this dive computer
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Select the _Pair_ option and wait for the task to complete. If this dive computer
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is being paired to Subsurface for the first time, it’s possible Subsurface will
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request a Pass Code or PIN number. The most commonly-used Pass Code is 0000,
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and this works for the Shearwater Petrel. If necessary, consult the user manual of the
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@ -719,11 +719,11 @@ Double-click on the blue bar below the new dive location name. The blue bar disa
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the globe icon on the right-hand of the location name text box turns blue. In the Dive Map part of the _Subsurface_ window, a world map appears (image C above). Click on the
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blue globe icon to the right of the dive site name in the _Notes_ panel (image B above). This opens a window for entering the details of the new dive location (image A below).
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The globe icon changes to indicate that the location data are being edited. The only important
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data here are the geographic coordinates of the dive location.
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data here are the geographic coordinates of the dive location.
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image::images/Globe_image2.jpg["FIGURE:Location creation panel",align="center"]
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There are three ways of adding the the coordinates:
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There are three ways of adding the coordinates:
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*(1):* Enter coordinates by hand if they are known, using one of
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four formats with latitude followed by longitude:
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@ -743,7 +743,7 @@ The dive site information can later be edited by clicking the globe icon to the
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dive site name in the *Notes tab*.
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*(2):* Use the Dive Map to specify the coordinates. The Dive map now shows
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all the existing dive lications in grey as well as an additional marker in red
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all the existing dive locations in grey as well as an additional marker in red
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(image B above). Drag the red marker to the location of the dive site being entered.
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The map can be dragged and zoomed using the mouse wheel. Position the red marker
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by dragging it on the map, zooming in on the appropriate part of the map and placing
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@ -759,12 +759,14 @@ image::images/Globe_image3.jpg["FIGURE:Location creation panel",align="center"]
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Once the dive location data have been saved, the dive on the Dive List has
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a globe icon immediately to the left of the location name of a particular dive.
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*(3):* Use eiher the Subsurface-Mobile App or the _Subsurface_ Companion App on an
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*(3):* Obtain the coordinates using either the Subsurface-Mobile App or the _Subsurface_ Companion App on an
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Android or iPhone device with GPS and if the dive site coordinates
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were stored using one of these apps.
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xref:S_Companion[Click here for more information]
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*Important*: GPS coordinates of a dive site are linked to the location
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[icon="images/icons/warning2.png"]
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[WARNING]
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GPS coordinates of a dive site are linked to the location
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name - so *saving* a dive site with only coordinates and no name
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causes problems. (Subsurface will think all of these
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dives have the same location and try to keep their GPS coordinates the
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@ -986,7 +988,7 @@ Many divers log their dives using the proprietary software provided by the
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manufacturers of their dive computers. _Subsurface_ can import dive logs from a range of
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other dive log software. While import from some software is supported natively,
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others require
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export of the the dive log to an intermediate format that can then be imported
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export of the dive log to an intermediate format that can then be imported
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into _Subsurface_.
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Currently, _Subsurface_ supports importing CSV log files from several sources.
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Dive log import from APD LogViewer, XP5, Sensus and Seabear files are
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@ -1156,7 +1158,7 @@ progress.
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Open the website at:
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_https://thetheoreticaldiver.org/rch-cgi-bin/smtk2ssrf.pl_
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_https://thetheoreticaldiver.org/rch-cgi-bin/smtk2ssrf.pl_
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This is a no-frills
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web service for converting _SmartTrak_ dive logs to _Subsurface_. Select the browse button. This allows
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@ -2012,11 +2014,11 @@ image::images/sidemount1.jpg["FIGURE: Sidemount profile",align="center"]
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Passive semi-closed rebreathers (pSCR) are a technical advance in diving equipment that
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recirculates the breathing gas a diver uses, while removing carbon dioxide from
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the exhaled gas. While a small amount (typically a tenth) of the exhaled breathing gas is released into the water,
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a small amount of fresh gas is released from the driving gas cylinder.
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a small amount of fresh gas is released from the diving gas cylinder.
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A diver using a single cylinder of breathing gas can therefore dive for much longer periods than
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using a recreational open-circuit configuration. With pSCR equipment, a very small amount of breathing
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gas is released every time the diver inhales. With active SCR (aSCR) equipment, in contrast, a small amount of
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breathing gas is released continuously from the driving cylinder.
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gas is released every time the diver exhales. With active SCR (aSCR) equipment, in contrast, a small amount of
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breathing gas is released continuously from the diving cylinder.
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To log pSCR dives, no special procedures are required. Use the normal steps outlined above:
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@ -2061,7 +2063,7 @@ based CCR systems are different in this respect and allow multi-dive downloads.
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For Shearwater CCR controllers, or independent Shearwater CCR logs, just download the dive log as would
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be the case for non-CCR dives. _Subsurface_ interprets the CCR dive log correctly.
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Except for Shearwater CCR dive computers, CCR dive data are currently obtained from the proprietary software
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provided when purchasing CCR dive equipment. See the section dealing with xref:S_ImportingAlienDiveLogs[Importing dive information from other
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provided when purchasing CCR dice equipment. See the section dealing with xref:S_ImportingAlienDiveLogs[Importing dive information from other
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digital sources] and <<_appendix_b_dive_computer_specific_information_for_importing_dive_information,Appendix B>>
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for more complete information. Use that software to download the dive data into
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a known directory. From the main menu of _Subsurface_, select _Import -> Import
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@ -2173,7 +2175,7 @@ Poseidon MkVI and APD equipment can be found in xref:_appendix_b_dive_computer_s
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The Dive Map has a number of buttons useful for manipulation several aspects of a dive. These are:
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[icon="images/icons/MapViewMode.jpg"]
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[icon="images/icons/MapViewMode.jpg"]
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[NOTE]
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Select this button to show the Dive Map as a satellite image or as a Google Maps
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representation.
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@ -2473,7 +2475,7 @@ indicate
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times of increased normalized air consumption while dark green reflects times
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when the diver was using less gas than average.
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When in planner mode, the SAC is set to be constant during the bottom part
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When in planner mode, the SAC is set to be constant during the bottom part
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of the dive as well during decompression. Therefore, when planning a dive,
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the color is a representation of the breathing gas density.
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@ -3800,8 +3802,10 @@ the transitions are shown separately from the segment durations at a particular
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The planner has a check box _Display plan variations_. By checking this box, the planner
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provides information about a dive that is a little deeper or slightly
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longer than the planned dive. This can be found near the top of the _Dive plan details_
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where the dive duration is indicated. Checking this option creates a lot of additional computation,
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longer than the planned dive. This is found near the top of the _Dive plan details_
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where the dive duration is indicated. The information is intended to be used if it is necessary to
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modify the ascent "on the fly" in the case of unexpected deviations from the dive plan during the dive.
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Checking this option creates a lot of additional computation,
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to such a degree that the planner is slower than otherwise. The information is typically
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given as:
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@ -3810,33 +3814,32 @@ given as:
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This indicates:
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* Calculated dive duration is 53 min.
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* For each extra meter in depth during the bottom phase of the dive, the duration increases by 52 seconds.
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* For each extra meter in depth during the bottom phase of the dive, the ascent duration increases by 52 seconds.
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* For each extra minute of bottom time, the duration increases by 4 min 21 sec. Thus, if the bottom time is
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two minutes longer than planned, the dive duration will be (2+2*4min 21 sec) = 10 minutes 42 sec longer and
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would probably require that each deco stop is 10:42/53:00 = 20% longer than planned. These calculations
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two minutes longer than planned, ascent duration duration will be (2 * 4min 21 sec) = 8 minutes 42 sec longer and
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would probably require that each deco stop is 8:42/53:00 = around 16% longer than planned. These calculations
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are only applicable for small deviations from the dive plan, not for larger deviations.
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* Minimum gas requirements*
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*Minimum gas requirements*
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The planner also estimates the *minimum gas* pressure required for safe ascent after an event that causes the dive
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to be aborted. The calculation assumes that in worst case an out of gas (OoG)
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situation could occur at the end of the planned bottom time at maximum depth. This OoG event forces
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the buddy team the share the gas of one diver and to stay at maximum depth for an additional
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number of minutes.
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At the same moment the combined SAC of both divers is increased by a estimated factor compared to the SAC factor of a single diver under normal conditions.
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situation occurs at the end of the planned bottom time at maximum depth. This OoG event forces
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the buddy team the share the gas of one diver and thet they require an additional period of time at maximum depth to solve the problem at hand.
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In addition the combined SAC of both divers is increased by an estimated factor compared to the SAC factor of a single diver under normal conditions.
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The result of the minimum gas calculation for the bottom gas is printed to the planner output. No automatic checks are performed based on this result.
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The feature only gives valid results for simple, rectengular shaped single
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level dive profiles. For multi level dives one would need to check every leg of the profile independently.
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There are two selector boxes on the left of the _Dive plan details_:
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* *SAC factor*. This is your estimate of the degree to which your SAC increases if a critical problem arises underwater,
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* *SAC factor*. This is an estimate of the degree to which your SAC increases if a critical problem arises underwater,
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e.g. gas sharing or entanglement. Realistic values range from 2 to 5, reflecting the gas use of two divers sharing
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a single gas cylinder after an OoG situation.
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* *Problem solving time*. This is your estimate of how long you would take to solve the problem before starting the ascent
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* *Problem solving time*. This is an estimate of how long you would take to solve the problem before starting the ascent
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to terminate the dive. The default value is 2 minutes.
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Using the above information, the planner then estimates what the minimum botom gas cylinder pressure needs to be for a
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Using the above information, the planner then estimates what the minimum bottom gas cylinder pressure needs to be for a
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safe ascent. This information is given near the bottom of the _Dive plan details_, following the calculation of
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bottom gas used during the dive if it exactly follows the plan. the minimum gas is typically given as:
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@ -3849,7 +3852,7 @@ This indicates:
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* The number of bars of back gas required for a safe ascent (90 bars in the example above).
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* The delta-value: number of bars of back gas available at the end of the bottom section of the dive, _over and above_ the minimum
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gas requirement (80 bars in the above example). A positive delta reflects a safe plan; a negative delta indicates insufficient gas for a
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safe ascent.
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safe ascent.
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****
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[icon="images/icons/warning2.png"]
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