A free-diving, self-contained deep-sea research vessel consisting essentially of a large flotation hull with a crewed observation capsule fixed to its underside, capable of reaching depths of10 kilometers(6.2 miles) or more.

• 深海潜测艇一种能自由潜入，能够人为操控的深海探测潜艇。上由一个大型外壳和固定在下面的探测舱组成，以便工作人员观察，能够到达十公里或更深的海底