基本解釋[經(jīng)濟(jì)學(xué)]二丁氨腈詞組短語(yǔ)短語(yǔ)di -butylcyanamide 二丁氨腈butylcyanamide更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)二丁氨腈