“机敏”级潜艇在全世界的海域中巡逻，而且被水面舰艇和其他潜艇探测到的几率非常小。
The Astute submarines will patrol the world's oceans with minimum risk of being detected by surface ships and other submarines.
"这项技术被发明之后，武器设计者将其改造用来探测潜艇只是时间早晚的问题。
After this technique had been invented, it was only a matter of time before weapons designers adapted it for the detection of submarines.
当潜艇指挥官使用潜望镜对海面态势进行评估的时候最容易被探测到也最容易被攻击。
Submarines are most vulnerable to detection when the submarine commander USES a periscope to assess the situation on the surface.
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