短語(yǔ)詞組短語(yǔ)Semi -portal slewing crane 半門(mén)座起重機(jī)slewing portal crane 旋臂轉(zhuǎn)柱起重機(jī);旋臂轉(zhuǎn)柱吊車(chē)slewing g portal crane 旋臂轉(zhuǎn)柱起重機(jī) 返回 portal slewing crane