基本解釋[經(jīng)濟(jì)學(xué)]正比硼計(jì)數(shù)管詞組短語(yǔ)短語(yǔ)proportional boron -lined counter 正比涂硼計(jì)數(shù)管boron trifluoride proportional counter 三氟化硼正比計(jì)數(shù)管boron deposited proportional counter tube 硼沉積正比計(jì)數(shù)管proportional boron counter更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)正比硼計(jì)數(shù)管