短語詞組短語tower r slewing crane 塔式廻轉(zhuǎn)起重機(jī)low -level slewing tower crane [機(jī)]下廻轉(zhuǎn)塔式起重機(jī)high -level slewing tower crane [機(jī)]上廻轉(zhuǎn)塔式起重機(jī) 返回 tower slewing crane