水下航行

[shuǐ xià háng xíng]

• submarine navigation
• underwater navigation

参考释义

水下航行

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例句

1. 柴油潜艇在水下只能航行非常短的时间，而核潜艇在水下航行的时间要长得多。
   A diesel submarine is able to cruise under water for a short period of time, but a nuclear one is able to cruise under water much longer.