In the paper, interchangeability of gases, impact of gas-changing on gas burner performances, gas replacement measure and method are studied.

分析与研究了燃气的互换性、燃气转换后对燃具燃烧特性的影响，探讨了燃气置换的措施和方法。

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Tectonic holistic preservation is the main geologic setting of natural gas accumulation and the significant condition of late gas replacement and preservation.

整体封存构造保存条件是该盆地天然气成藏的主体地质背景和晚期成藏保存的主要条件。

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This paper analyses the problems and status quo on pressure regulating station before gas replacement as well as introduces the technical reform scheme of gas replacement.

分析了置换天然气前调压站现状及存在的问题，介绍了置换天然气中调压站的技术改造方案。

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As Japan is forced to wind down its nuclear operations, natural gas is surfacing as a possible replacement, explains Holland.

FORBES: Little Risk To GE From Japan Nuke Crisis

He said gas engineers told him they struggled to get replacement parts for the boiler delivered because of the snow and, on one visit, they brought the wrong part.

BBC: Burntwood man and disabled son left without heating

NOte that 23% reduction in fuel consumption is due to the efficiency increase and another 5% reduction is due to the replacement of 5% of the gas by the ethanol (EDIE uses 5% ethanol).

FORBES: Big Corn Gets Bigger: America's Ethanol Decade