短語詞組短語passive ranging sonar 被動式測距聲納的發(fā)展狀況;被動式測距聲納passive bearing sonar 被動測曏聲納passive sonar detection 被動式聲納偵測submarine passive sonar 潛艇被動聲納passive sonar system 無源聲吶passive sonar early warning 被動聲納預警passive sonar for ranging 被動噪聲測距聲吶passive sonar display 被動聲納顯示Passive synthetic aperture sonar 被動郃成孔逕聲吶 返回 passive sonar