基本解釋[經(jīng)濟(jì)學(xué)]樞軸啣鉄詞組短語短語hinge armature pivoted armature 樞軸啣鉄pivoted armature更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)樞軸啣鉄