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。
Natural gas pipeline network is a natural monopoly and the lack of effective supervision will damage the interests of consumers.
但是天然气输送管网具有自然垄断性，缺乏有效监管将损害消费者利益。
So it can enhance the peak-shaving ability of gas enterprises and benefit the stabilized operation of natural gas pipeline network.
这样能够增强燃气企业的“调峰”能力，有利于天然气管网的平稳运行。
Creatures can be incorporated into the common natural gas pipeline network, natural gas can also generate squeezed state of vehicle fuel.
生物天然气可并入普通天然气管网，也可生成压缩态的车用燃料。
A pipe hydraulic resistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.
采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
In natural gas pipeline network construction, in order to prevent accident and reduce loss, urgent repair centers shall be built in large-size gas pipelines and pipeline network concentration areas.
随着天然气输气管网建设工程的增多，为预防事故和减少损失，大型输气管线和管网密集地区需要建设管道抢险维修中心。
Europe has sought a so-called Southern Corridor gas pipeline network from here through Turkey to help reduce its dependence on natural gas from Russia.
欧洲在寻求建立一个从此地出发、途经土耳其的，所谓的“南方走廊”天然气管道网络，以减少其对俄罗斯天然气的依赖。
Natural gas is one of the foremost high quality and sanitary energy sources. Gas transmission pipeline network is the artery connecting natural gas resource and market.
天然气是当今世界最重要的优质清洁能源之一，输气管网是连接天然气资源与市场的动脉。
When a natural gas network is done off-line numerical simulation, every pipeline needs be distributed initiatory flow as the initiatory value of iterative computation.
在对天然气管网进行离线数值模拟计算时，需要给各管段分配初始流量，并作为迭代计算的初始值。
Fully welded ball valve is widely used in natural gas, oil, heat, chemical and thermoelectric pipeline network and other long-distance pipeline fields.
全焊接球阀广泛应用于天然气、石油、供热、化工及热电管网等长输管线领域。
Fully welded ball valve is widely used in natural gas, oil, heat, chemical and thermoelectric pipeline network and other long-distance pipeline fields.
全焊接球阀广泛应用于天然气、石油、供热、化工及热电管网等长输管线领域。
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