FM sonar (frequency-modulation sonar)_专利英汉词典
FM sonar (frequency-modulation sonar)
[专利英汉词典]
FM sonar (frequency-modulation sonar)【物理】
调频声纳（调频声纳）
是什么意思，FM sonar (frequency-modulation sonar)的解释，FM sonar (frequency-modulation sonar)的翻译
