基本解釋[經(jīng)濟(jì)學(xué)]氣炬切割詞組短語短語NC gas -torch cutting machine 數(shù)控氣切割機(jī)牀gas -cutting torch 氣割炬gas-torch cutting更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)氣炬切割