| 摘要 |
A submersible watercraft has at least one watertight hull and a diver-exit vessel adapted to accommodate a diver is detachably connected to the watercraft by a sealable diver-exit port which enables divers to pass between the diver-exit vessel and the watercraft. The diver-exit vessel has a buoyancy and hauling apparatus such as a pair of ropes link the diver-exit vessel to the watercraft when the diver-exit vessel is not docked at the diver-exit port.
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