If, however, they are subjected instead to pyrolysis-a process of controlled burning in a low-oxygen atmosphere-the result is charcoal, a substance that is mostly elemental carbon.

但如果经过高温分解—在低氧环境下有控制的燃烧—它将会形成木炭，其大部分是永久碳。

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The oxygen utilization rate is low in manganese tetroxide preparation by metallic manganese powder suspending liquid process.

在金属锰粉悬浮液法制备四氧化三锰过程中存在氧气利用率较低的情况。

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Microbial common strike of the combination process includes inlet COD, BOD, alkalinity, low dissolve oxygen of aeration pond.

该工艺组合中微生物经常受到的冲击有进水COD、BOD、碱度和曝气池低溶解氧。

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If, however, they are subjected instead to pyrolysis a process of controlled burning in a low-oxygen atmosphere the result is charcoal, a substance that is mostly elemental carbon.

ECONOMIST: Biochar could enrich soils and cut greenhouse gases as well