1) hole cap
孔盖
2) manhole-cover
检修孔盖
1.
In accordance with the overload failure problem of the manhole-cover, this paper studied failure reasons andreasonable methods to improve load carrying ability and security of manhole-cover with the analyzing software I-DEAS.
针对使用中常出现的检修孔盖超负荷失效问题,本研究以I-DEAS软件为分析工具,研究其失效原因及提高承载能力的结构改进设计,以增强其使用安全性。
3) manhole cover
出入孔盖
4) sight,cap
观察孔盖
5) gaugel seal
计量孔盖
6) ice hole cover
加冰孔盖
参考词条
补充资料：孔盖
1.以孔雀羽毛装饰的车盖。亦泛指华丽的车舆。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。