基本解釋[經(jīng)濟(jì)學(xué)]窄束測(cè)深儀詞組短語(yǔ)短語(yǔ)multi -narrow-beam echo sounder 多窗梁反射發(fā)聲器narrow-beam sounder更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)窄束測(cè)深儀