基本解釋轉(zhuǎn)柱挺桿起重機；旋臂式轉(zhuǎn)柱起重機；塔式起重機詞組短語短語revolving pillar jib crane 回旋立柱臂桿起重機;立柱式旋臂起重機swinging pillar jib crane 定柱轉(zhuǎn)臂起重機;定柱旋臂起重機pillar jib crane更多詞組專業(yè)釋義經(jīng)濟學轉(zhuǎn)柱挺桿起重機