(显示指针光标)：在光束终点位置的地面显示光标。用来看光束终点位置的高度很有用，它可以通过切换这个来关闭。
Show Pointer cursor: a cursor is displayed on the ground at the location the beam ends at, it is useful to see what height the beam end location is, however it can be turned off by toggling this.
根据收到的视频显示，外科医生使用长柄的手术工具将胆囊从周围的组织器官中挖出来，然后再通过切口机将其取出。
Guided by the resulting video feed, the surgeon wields long-handled tools to excavate the gall bladder from its neighbouring organs before removing it though the slit.
根据收到的视频显示，外科医生使用长柄的手术工具将胆囊从周围的组织器官中挖出来，然后再通过切口机将其取出。
Guided by the resulting video feed, the surgeon wields long-handled tools to excavate the gall bladder from its neighbouring organs before removing it though the slit.
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