... gas safety automation 混凝土加气煤气安全自动装置 gas service pipe 气体分配管 gas stove 煤气炉 ...
基于174个网页-相关网页
The service conditions of the international high-pressure natural gas transmission pipeline, pipeline steel and welded pipe at present are introduced.
介绍了现代国际上高压输送天然气管道，管线钢及焊管的使用情况。
So it's very necessary to make integration of estimation for the service life of gas pipe network.
因此，有必要对燃气管道的使用寿命进行综合评价。
应用推荐