manholes and manhole covers的意思|示意
美 / /
英 / /
人孔和井盖
manholes and manhole covers的网络常见释义
沙井和井盖 ... 提升站 lift stations 沙井和井盖 manholes and manhole covers 泵控制器 pump controllers ...
manholes and manhole covers相关例句
Shell as used herein shall mean all pressure holding parts of the vessel in contact with the service fluid, including heads, nozzles, manholes and manhole covers.
这里的壁板指与系统介质接触的所有压力部件，包括封头、设备口、人孔及人孔盖板。