manholes meaning in English
人孔
Examples
- Practice for hdpe manholes for subsurface applications
地下高密度聚乙烯人孔惯例 - Inspection manhole lid made of polymer matrix composites
聚合物基复合材料检查井盖 - Manhole closures for pressure vessels of stainless steel
不锈钢制压力容器用人孔盖 - Manhole tops classes a 15 and b 125 , circular ; frames
A15和b125级圆形人孔顶部.框架 - Manhole covers for bunkers and tanks on ships ; seals
船舶贮舱和液槽的人孔盖.密封件