常見例句雙語例句The sulfur tolerance of nickel metal catalysts in aromatic hydrogenation has been studied systematically on the base of nickel active unit in this paper.以鎳爲(wèi)活性組元，系統(tǒng)地研究了鎳基芳烴加氫金屬催化劑的抗硫性能。From molecule structure of coal, coal reaction character was described by aromatic ring , hydrogenation aromatic ring , alkane , alkane bond , oxy-group.從煤分子結(jié)搆出發(fā)，煤的反應(yīng)性可以用芳香環(huán)，氫化芳香環(huán)，烷烴鏈、烷烴鍵和含氧官能團的變化來描述。The catalyst prepared by said invented method has high conversion rate and high selectivity for synthesizing cycloolefine by means of aromatic selective hydrogenation.本發(fā)明方法制備的催化劑對芳烴選擇加氫郃成環(huán)烯烴具有高轉(zhuǎn)化率和高選擇性。ip.com 返回 aromatic hydrogenation