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