短語(yǔ)詞組短語(yǔ)derrick or mast 井架或便攜式井架pole derrick derrick mast 起重扒桿derrick k mast 扒桿derrick kingpost lifting mast 起重桅桿man -riding derrick mast 乘人扒桿mast derrick 桅式吊車guyed -mast derrick [機(jī)]把桿起重機(jī)single -mast derrick 單桅桿鑽塔the single -mast derrick 單桅桿鑽塔 返回 derrick mast