常見例句雙語例句A crucial issue in a passive sonar system is detection of the spectral lines.在被動聲納系統(tǒng)中，線譜檢測是一個至關重要的問題。Feature extraction of targets radiated-noise is the key technique of passive sonar target recognition system.目標噪聲特征提取是被動聲納目標識別系統(tǒng)的關鍵技術。First the paper explains the principle and physical basement of passive SONAR direction and the reason that will lower the precision.論文闡述了被動聲納測曏原理及物理基礎，竝分析了影響測曏精度的主要因素。 返回 passive sonar