短語(yǔ)詞組短語(yǔ)sonic echo -sounder 聲波回聲測(cè)深儀inverted echo -sounder 倒置回聲測(cè)聲儀digital echo -sounder 數(shù)字顯示式回聲測(cè)聲儀Echo -sounder instrumental errors 儀器digital ultrasonic echo -sounder 數(shù)字超聲波測(cè)深儀multi -beam echo-sounder 多束測(cè)深儀eccentric wheel echo -sounder eddy 漩渦Single -beam Echo Sounder 單音束測(cè)深系統(tǒng)wide -beam echo sounder 寬束回聲測(cè)聲儀 返回 echo-sounder