This paper studies economy analysis index system of burning blended coal of fire resistant coal from Viet Nam and free-burning coal from Tashan of China or Indonesia on 600 MW super critical unit.

研究了600 MW超临界机组掺烧越南无烟煤等极难燃煤种和塔山煤、印尼煤等极易燃煤种的经济性分析指标体系，给出了一套较为简单的、适合现场评估的经济分析指标。

youdao

The evergreen forests of the Amazon and Congo basins, for example, are generally fire-free because the closed canopy maintains a level of humidity that inhibits burning.

例如，亚马逊和刚果盆地的乔木通常是防火的，因为它们遮天的树冠保持了一定的湿度，抑制了燃烧。

youdao

Free radicals are produced mainly by the body burning oxygen, partly as a result of smoking, pollution and sunlight.

游离基主要是在身体消耗氧气时产生，部分是因吸烟、污染和日照所致。

youdao

"Desire" is blessedly free of the burning deserts and first-person fantasies of manipulative or murderous mothers that made listening to "To Bring You My Love" feel like a vicarious psychological collapse.

CNN: Review: PJ Harvey soars on wings of 'Desire'

So whether it is our hopeless good nature that wishes to believe in the altruism of the free gift giver (unlikely) or our burning desire to receive something-for-nothing (more likely), the freebie-seeking thread is so persistent in us that the theme remains a constant in money and life.

FORBES: There Are No Free Skittles

Dr Alamaro wants to use a gas-burning, rather than a coal- or oil-burning plant, because the exhaust produced by burning natural gas is free from sulphur dioxide, which plants hate.

ECONOMIST: Horticulture