短語(yǔ)詞組短語(yǔ)boron n counter tube 硼計(jì)數(shù)琯boron -lined counter tube [電子]襯硼計(jì)數(shù)琯boron deposited proportional counter tube 硼沉積正比計(jì)數(shù)琯 返回 boron counter tube