1)access plug and cap,检修孔塞和孔盖2)manhole-cover,检修孔盖3)access panel,检修孔盖板4)housing hand hole plate,壳体检修孔盖板5)cover on sevicing opening,维修孔盖6)manhole,人孔,检修孔
用法例句
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.
