输气管道工程设计规范
- 网络Code for design of gas transmission pipeline engineering
输气管道工程设计规范-
管道输送固体料浆工艺输气管道工程设计规范
Technology of pipelining solid-slurry Code for design of transmission pipeline engineering
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输气管道工程设计规范
Code for design of transmission pipeline engineering
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输气管道工程设计规范加强管理提高输油气管道焊接工艺规程的执行力
Code for design of transmission pipeline engineering Enhance Management and Administration of Jointing Regulations of Oil and Gas Pipeline
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有一条输气管堵塞了.输气管道工程设计规范
One of the air ducts has become blocked . Code for design of transmission pipeline engineering