输气管

In the production and management of the natural gas pipelines, the pigging are widely used to remove the condense and the gas hydrates.

在输气管线的生产运行中，广泛应用清管器清除管线中的水合物及天然气凝液。

The dissertation has introduced the analyzing and reconstruction question of complicated treed natural gas pipe network system.

本文介绍了输气管道系统的分析及改造问题，主要研究了现存复杂树枝状干线管网系统的改造和分析。

It is applicable to resistance to tank of crude oil and sewage, oil line, tank of coal gas, gas pipe, sewage treatment tank, power plant, line of chemical plant, ocean engineering facilities.

适用于油田中的原油、污水罐、各种管道、煤气贮柜、输气管，污水处理池，电厂、化工厂管道、海洋工程设施等作重防腐涂料之用。

The heavy-caliber petroleum pipe line, the air conduit, the seamless steel pipe, the welded pipe, the stainless steel steel pipe (Fang Xing, moment, circle stainless steel pipe and so on), fittings, the cold rolling seamless tube, the box thread seamless steel pipe, the cold draw seamless steel pipe, the corrosion preventing special steel pipe, the compo pipe, the boiler pipe, the bushed bearing and so on conical seamless steel pipe, seamless heterogeneous steel pipe, metal corrugated pipe, industry welded pipe, carbon steel tube and so on, construct the steel pipe, the multiple-unit tube, the compound steel pipe, the wire conduit, the thread steel pipe welded steel pipe, the pot galvanize steel pipe, the electricity galvanization steel pipe, the KBG line drive pipe, the delivery pipe and so on;..

大口径输油管、输气管、无缝钢管、焊管、不锈钢钢管（方型、矩型、圆型不锈钢管等）、锥型无缝钢管、无缝异型钢管、金属波纹管、工业焊接管、碳钢管等配件、冷轧无缝管、内螺纹无缝钢管、冷拔无缝钢管、防腐蚀特种钢管、合金管、锅炉管、轴承管等、建筑钢管、复合管、复合钢管、导线管、螺纹钢管焊接钢管、热镀锌钢管、电镀锌钢管、KBG线路导管、供水管等；。。

In the process, they were replacing street surfaces, sewer connections, storm drains, catch basins, gas lines and whatever else they inadvertently dug up with their backhoes.

在这个过程中，他们重铺了街面，下水道，泄洪管，储水池，输气管道以及一切他们挖掘机有意无意挖到的东西。

One of the air ducts has become blocked.

有一条输气管堵塞了。

The article analyzes the steady optimization operation problem of main gas transmission pipe network on constant transportation conditions.

文章研究了主干输气管网在定输量情况下的稳态优化运行问题，所采用的最优准则是运行能耗费用最低。

A new decay model for propagation speed of crack on gas pipeline was proposed with fitting and analyzing the burst test results of Alliance pipeline.

国际上计算输气管线动态断裂与止裂的PFRAC软件中视裂纹扩展速度为常数。

Keywords gas pipeline;control system;optimization;west-to-east gas pipeline;support vector machine

西气东输；输气管道；控制系统；最优化；支持向量机

The main courses are political theory and foreign language, engineering mathematics, elasto-plastic mechanics, computer applications, fluid mechanics, seepage mechanics, numerical simulation of petroleum deposits, petroleum chemistry, recovery ratio theory, petroleum and natural gas exploration techniques, petroleum and natural gas well engineering, shaft engineering, natural gas engineering, petroleum deposit engineering, pipe engineering for petroleum transport, pipe engineering for gas transport, petroleum and gas transport, simulation of petroleum and gas pipes, natural gas liquefaction technique, management theory and energy economics.

研修的主要课程有：政治理论课、外语课、工程数学、弹塑性力学、计算机应用技术、高等流体力学、高等渗流力学、油藏数值模拟、油田化学、采收率原理、现代油气勘探技术、现代油气井工程、现代凿井工程、天然气工程、高等油藏工程、高等采油工程、高等输油管道工程、高等输气管工程、油气田采输系统、油气管道运行模拟、天然气液化技术、高等管理学基础、能源经济等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。