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- The reaction yield can be increased by the improvement of alkylation methods. 本文研究了烃化反应;并对其进行了工艺改进;结果使原反应产率得以明显提高.
- The technology of producing 1,3,5 -trimethylbenzene by industrial alkylation method is studied. 针对目前工业烷基化法生产均三甲苯的技术进行研究。
- The three production methods of mesitylene,which include alkylation method,isomerization method, alkylation and isomerization combination method,are introduced in detail. 详细介绍了均三甲苯的三种生产方法(烷基化法、异构化法、异构化和烷基化联合法),评价了这些方法的优缺点。
- Their business methods sicken me. 我很讨厌他们做生意的手法。
- There are no infallible methods. 没有绝对可靠的方法。
- The old methods proved best after all. 采用老方法结果反而是某事物最好。
- She's not too nice in her business methods. 她的经营方法不敢恭维。
- Employment of empirical methods, as in science. 经验方法的运用，例如在科学中
- We'll try to improve our teaching methods. 我们要设法改进教学方法。
- These methods have fallen into disuse. 这些方法已废而不用了。
- Alkyl halides are reacted with sodium nitrite. 卤化烷与亚硝酸钠反应。
- The two methods were in effect identical. 那两个办法实际上是一样的。
- Geometrical theorems grew out of empirical methods. 几何定理是从经验得出的。
- Alkyl bromides can be produced this way. 溴化烷可以这样形成。
- One who makes a living by dishonest methods. 骗子通过非诚实的方法谋生的人
- This invention concerns an alkylation process. 本发明涉及烷基化方法。
- The methods used have helped enormously in cutting out deadwood. 这些方法在废物利用方面起了相当大的作用。
- To add one or more alkyl groups to(a compound. 使烷基化在（一种化合物）中添加一个或多个烷基团
- Which of the two methods is superior? 这两种方法哪一种好?
- To add one or more alkyl groups to(a compound). 使烷基化在（一种化合物）中添加一个或多个烷基团
