Valve structure that is buried, extended stem structure, making it suitable for laying of underground pipes installed in places.
球阀埋地结构即，加长阀杆结构，使其适用于管线埋地铺设安装的场所。
A field investigation of corrosion status of buried pipeline and measurement of the soil parameters were conducted, accompanied with corrosion test piece laying and field sampling.
进行了现场腐蚀状况调研，对现场埋地管道的土壤腐蚀情况就地测量了相关参数，并进行了腐蚀试片埋设和现场取样工作。
The buried-pipe laying of steel natural gas line concerns entire urban gas supply system and the safety of people's lives and properties.
钢质天然气管道埋地敷设工程关系到整个城市供气系统和人民生命财产的安全。
应用推荐