煤烟是燃料不完全燃烧的产物.Soot is the product of the imperfect combustion of fuel.煤烟通常是燃料不完全燃烧的产物.Soot is usually the product of the imperfect combustion of fuel.烟囱里面很快就覆盖了一层煤烟.The inside of a chimney soon gets covered in soot....
The betaine will collapse to the alkene only when these two functions are eclipsed.只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃.Ingredients: Purified water, Cucumber Extract, Hyaluronic Acid Myristic Acid, Cocoamidopropyl Betaine.主要成份: 维他命E...
附有索引的增补卷已经出版.A supplementary volume has been published containing the index.这些早期的观察曾为化学馏分的结果所增补.These early observations have been supplemented with results from chemical fractionation.我在忙着给我的书增补更多的例句.I'm busy spatc...
Among the simplest are the lanthanum compounds of the form La?其中最简单的是la? 研问降娘缁0合物.Description: Lanthanum Nitrate is soluble in water and moisture in wet air.说明: 硝酸镧溶于水,在潮湿的空气中易潮解.The extraction mechanism and separation p...
Somehow he tells these stories without a note of horror.不知为什么他讲这些故事时一点都不害怕。She tells me her troubles. I tell her mine.我和她互相倾诉烦恼。The evidence of our eyes tells us a different story.我们亲眼所见的可不是那么一回事。...