bathysphere

noun

1. 探海球（载人进行海下观察）
   a round container in which a person can be carried down to the deep ocean, usually used for scientific study

1. You know, bathysphere windows? Those are sapphires.
   你知道，潜水窗就是用蓝宝石造的。

noun

1. spherical deep diving apparatus (lowered by a cable) for underwater exploration