Fruit orchardists have used various solid fuels.

果园的经营者曾使用过各种固体燃料.

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Globally, reliance on solid fuels is one of the 10 most important threats to public health.

对固体燃料的依赖被列入全球10大健康危险.

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Some solid fuels, such as wood and coal, are chiefly composed of carbon, hydrogen and oxygen.

某些固体燃料, 例如木头和煤, 主要是由碳 、 氢和氧构成.

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While burning solid fuels, like biomass, coal and waste , wall - burning will occur to a certain extent.

在燃用固体燃料, 如生物质 、 煤、固体废弃物时, 都存在一定程度的附壁燃烧现象.

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These solid fuels may be the least costly fuels available.

这些固体燃料可能是可用燃料中花费最少的.

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