Soot is the product of the imperfect combustion of fuel.
煤
是燃料不完全燃烧的产物。
Soot is the product of the imperfect combustion of fuel.
煤是燃料不完全燃烧的产物。
Soot is usually the product of the imperfect combustion of fuel.
煤通常是燃料不完全燃烧的产物。
Afterwards " fuliginous model " , " photochemical smog " after pollution, modern is being entered with " indoor air is polluted " the 3rd generation that is a mark pollutes period.
继“煤型”、“光化
型”
染
，
人正进入以“室内空气染”为标志的第三染时期。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不
表本软件的观点；若发
问题，欢迎向我们指正。
