短語詞組短語mains water supply 自來水mains water connection 進(jìn)水接口water mains 自來水總管道;自來水管Water Mains Replacement 換水管water mains detail 自來水干線Disinfecting Water Mains 消毒總水管fire water mains 消防主水管gas & water mains 煤氣及供水的干管工程 返回 mains water