The traceability for natural gas analysis and measurement, in essence, is that of reference gas mixture(RGM).

天然气分析测试的溯源性在本质上就是标准气混合物（RGM）的溯源性。

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The preceding and potential LNG sources in Guangzhou City are analyzed, and the selection of reference gas for gas appliance is discussed.

分析了广州液化天然气的前期气源和潜在气源，探讨了燃具基准气的选取。

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The gas mixture prepared according to Wobbe index of 12t reference gas can replace natural gas as a supplemental gas source or emergency gas source.

以12t基准气华白数配气得到的掺混气可以替代天然气作为补充气源或应急气源。

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All the things we are talking about here are with reference to the gas phase.

所有我们在这里谈到的,都和气相有关。

麻省理工公开课 - 固态化学导论课程节选

Campaigners found a reference to shale gas in that application and started campaigning against the proposal.

BBC: Public inquiry over gas drilling in Vale of Glamorgan