例句/词组:
We need a sonar to look for the ship under the sea.
我们需要一个声呐探测器寻找海底沉船。
英语解释：
equipment or a system for finding objects underwater using sound waves 声纳(利用声波探测水下物体的装置或系统)
,
例句/词组:
We need a sonar to look for the ship under the sea.
我们需要一个声呐探测器寻找海底沉船。
英语解释：
equipment or a system for finding objects underwater using sound waves 声纳(利用声波探测水下物体的装置或系统)
,
