短語(yǔ)詞組短語(yǔ)beam moment -deflection curve 彎矩beam -deflection ultrasonic flowmeter 射束偏轉(zhuǎn)式超聲流量計(jì);聲速偏轉(zhuǎn)式超聲流量計(jì)tube beam -deflection 射柱偏轉(zhuǎn)管 返回 beam-deflection