So it is very important to study the optimum design of city natural gas pipeline network system.
因此进行城市管网规划设计的研究具有重大的实际意义。
The capacity of the gas transportation pipeline network system was also studied so as to utilize all the existing pipeline and equipment fully in this dissertation.
为了充分利用现有的管道及设备，本文还对西北缘输配气管网系统的输气能力进行了研究。
A gas phase corrosion inhibitor, YH-901 inhibitor, is developed to apply to some gas compressor system and gas transmission pipeline network.
分析了某压气站离心机组及输气管网腐蚀产生的原因，研制开发出了YH-901气相缓蚀剂。
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