How do they even track a sub when it's submerged? Radar can't see under water.

How to say “How do they even track a sub when it's submerged? Radar can't see under water.” in Japanese

In Japanese

潜航中(せんこうちゅう)の潜水艦(せんすいかん)って、どうやって追跡(ついせき)するの？レーダーって水(みず)の中(なか)は見(み)えないよね。

Senkōchū no sensuikan tte, dō yatte tsuiseki suru no? Rēdā tte mizu no naka wa mienai yo ne.

How do they even track a sub when it's submerged? Radar can't see under water. in other languages