基本解釋[經(jīng)濟(jì)學(xué)]立式火管鍋爐詞組短語(yǔ)短語(yǔ)vertical fire -tube exhaust boiler 立式火管廢氣鍋爐vertical fire tube boiler更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)立式火管鍋爐