The optimization of the operational parameters and the experimental study with helium-hydrogen mixture on the miniature co-axial pulse tube refrigerator are carried out.

进行了微型同轴脉管制冷机系统运行参数的优化及氢氦混合工质应用的试验研究。

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The process, which converts a mixture of hydrogen and carbon monoxide to liquid fuels, and was discovered by German scientists.

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That hydrogen and carbon monoxide mixture is then pumped into one of two NOx traps, where it strips the oxygen from the NOx, forming nitrogen, carbon dioxide and water.

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There's nothing new about turning coal into gas--19th-century street lamps burned "town gas, " a dangerous mixture of carbon monoxide and hydrogen, produced by blasting coal with steam.

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