基本解釋[經(jīng)濟學]環(huán)鏈手扳葫蘆詞組短語短語YALE HAND CHAIN LEVER HOIST 耶魯手拉hand chain lever hoist更多詞組專業(yè)釋義經(jīng)濟學環(huán)鏈手扳葫蘆