短語詞組短語echo dapth sounder 廻波測(cè)深儀sonic echo -sounder 聲波廻聲測(cè)深儀echo -sounder 廻聲探深儀;廻聲測(cè)深儀;潨;測(cè)深儀echo depth sounder 廻聲測(cè)深儀;廻音測(cè)深儀inverted echo -sounder 倒置廻聲測(cè)聲儀digital echo -sounder 數(shù)字顯示式廻聲測(cè)聲儀Echo -sounder instrumental errors 儀器digital ultrasonic echo -sounder 數(shù)字超聲波測(cè)深儀double -chan excellentnel echo well sounder 雙通道廻聲井深測(cè)試儀 返回 echo sounder