因此,必须选择适当的馏分油,用调合法使它满足市场的要求.And optimum selection of crude types to meet market requirements by blending is necessary.C5馏分油主要来源于石油烃高温裂解制乙烯过程的副产品,随着乙烯工业的发展,乙烯废弃的C5馏分量逐年增大.另一方面,民用燃料需要量颇为可观.C 5 distillate of ethylene access...
Li Bai and Du Fu were two great geniuses in the Tang dynasty.李白和杜甫是唐代的两位伟大的天才.Gary Halbert , one of the top marketing geniuses in the world, talks about this principle.世界顶级的销售天才 GaryHalbert 曾说过这个原则.Most children are not ...