natural gas transmission pipeline

基本解释

Natural Gas Natural gas transmission pipeline between Xi'an and Weinan, Xianyang and Baoji has been built.
天然气西安至渭南、咸阳至宝鸡天然气输气管道也已经建成。
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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。
The technical condition of steel used in high-pressure natural gas transmission pipeline and the productive technique and feature of the welded pipe used in the pipeline is discussed.
对国外高压输送天然气管线用钢的技术条件，管线用焊管的生产工艺和生产特点作了论述。

输气干线
The sensitivity analysis information of the objective function and constraint functions with respect to design variables and design parameters can be gained by performing the sensitivity analysis to the natural gas transmission pipeline optimal model.
对输气干线优化设计模型进行优化结果灵敏度分析可以得到目标、约束函数对设计变量,设计参数的灵敏度信息。