人孔盖 meaning in Chinese
access door
companion
manhole cover
manhole door (or cover)
manhole plate
manlid
Examples
- Manhole covers for bunkers and tanks on ships ; seals
船舶贮舱和液槽的人孔盖.密封件 - Manhole tops , class b 125 - part 3 : covers
. b125级人孔盖.第3部分:井盖 - Manhole tops class b 125 - part 1 : summary
B125级人孔盖.第1部分:综述 - Specification for manhole cover assembly , raised , oiltight , and watertight
可提升的防油防水的人孔盖组件规范 - Manhole closures ; swivel devices
人孔盖.回转装置