轻煤，读音qīng méi，汉语词语，意思指轻细的烟灰，古代制墨精料。出自《欧阳季默以油烟墨二丸见饷各长寸许戏作小诗》。
阐述了轻瓷填料在煤制气洗苯、洗萘及脱硫等净化过程中的应用。
The application of light porcelain packing in coal gas purification process, such as washing benzene, washing naphthalene, and desulphurization, is introduced.
通过试验考察了添加轻烧菱镁石对煤粉燃烧率的影响。
The effect of light burned magnesite on the coal burnout ratio was investigated.
随着煤阶的降低，得到的无灰煤中轻组分含量增加；
With the coal rank reduced, the light component content of the ash-free ash obtained would be increased.
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