基本解釋[數(shù)學(xué)]壓力梯度水聽計(jì)詞組短語(yǔ)短語(yǔ)pressure -gradient vector hydrophone 壓差式矢量水聽器的目標(biāo)pressure-gradient hydrophone更多詞組專業(yè)釋義數(shù)學(xué)壓力梯度水聽計(jì)