这些产品的混合物许多化学品所造成的高温处理榉木等木材，煤炭，或从树脂的焦油布什。

These products are mixtures of many chemicals created by high-temperature treatment of beech and other woods, coal, or from the resin of the creosote bush.

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通过高温加热垃圾(不使其燃烧)，直到其分解生成可燃合成气(一氧化碳与氢的混合物)。残余物是些焦油和灰渣。

They both involve heating, rather than burning, waste until it breaks down into a flammable mixture of carbon monoxide and hydrogen, called syngas, and residual char, ash or slag.

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综述了国内外硫、氮、氯的污染物和碱金属、重金属、焦油蒸气等气体污染物的高温净化研究概况，提出了存在的技术问题。

An overview of internal and external study is made on high temperature purification of gaseous contaminants including sulfur, nitrogen and chlorine pollutants, alkali metal, heavy metal and tar vapor.

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