simultaneous search and attack sonar

例句：

1. 1.The sonar system was designed to detect underwater objects simultaneously.
   这个声纳系统被设计用来同时探测水下物体。
2. 2.The military used sonar for simultaneous search and attack.
   军队使用声纳进行同时搜索和攻击。
3. 3. The sonar technology is crucial for the operation of modern submarines.
   声纳技术对于现代潜艇的操作至关重要。