The title topic is reported in this study in a hydrogen atmosphere.

本文报导了七钼酸铵在氢气氛中的热分解过程。

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Vacuum sintering and sintering in hydrogen atmosphere of warm-compacted green compacts has been studied.

研究了铁粉温压压坯在真空和氢气中的烧结行为。

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The results show that at pure hydrogen atmosphere, the uniformity of pore size, spatial distribution of pores and pore-cells increases with hydrogen pressure.

结果表明：纯氢条件下气压越高，孔尺寸分布越趋于一致、孔位置和气孔结构单元分布越均匀；

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If they have gained mass it could be because the platinum based ingots have absorbed mercury from the atmosphere or hydrogen from the solvents used to clean the ingots.

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An atmosphere of hydrogen and carbon dioxide on Callisto.

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And it's believed that the high chemical reactivity of the surface is due to the deposition of chemically active gases from the atmosphere onto the surface, gases like hydrogen peroxide and ozone.

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