The French navy has built an abyssal bathyscaphe to take three men to the floor of the Marianas Trench.
法国海军已经建造了一个深海潜水器，用来装载三个人去到马利亚纳海沟的基底。
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Little Hercules is cruising over hydrothermal springs, abyssal muds and the rocky tops of seamounts-a kind of underwater mountain that rises from the sea floor.