Sound Underwater Signal Source的用法和樣例：
例句
- The underwater acoustic signal is the main information for the underwater detection and identification system, so it is very important to get the acoustic signal efficiently.
摘要水下聲信號是水下探測系統實現對水中目標遠程探測識別的主要信息之一，有效獲取水下聲信號是一個十分重要的問題。
辭彙搭配
- under water 在水下面
