En enigmatical personage about whom little was known, except that he was a man the world.西锐登是一位为英国增光的伟大的演说家,继承他这所房子的福克先生却是一位令人捉摸不透的人物.She is stately in personage.她仪容端庄.How that personage haunted my dreams, I need scarcel...
煤被干馏后剩下固体残余物:焦炭.Coal is destructively distilled leaving a solid residue, coke.两者通过普通的分馏彼此分离.It can be separated from each other by ordinary fractional distillation.较重的沸腾着的馏分以液态停留在多孔的壁上.The heavier boiling fractions remai...