submarine navigation的用法和样例：
例句
- Thermocline is important for submarine in underwater navigation and action.
温跃层对于潜艇的水下航行和战斗具有十分重要的意义。 - 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.
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。
