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