常見(jiàn)例句雙語(yǔ)例句Few works has been mentioned for soot formation derived from lump-coal combustion in stoker-fired boiler.研究層燃爐煤燃燒的碳黑形成機(jī)理，對(duì)減少污染物排放和提高燃燒效率有重要意義。 返回 lump-coal combustion