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- the second reaction region 二反区
- The process was more economic in which the iodomethane is substituted to the bromoethane in the second reaction. 在原文献的基础上，作了一些改进，最主要的是第三步的烷基化试剂由溴乙烷替代碘甲烷，降低了工业成本，使本工艺易于工业化。
- Therefore,the activity of CGP-1 in the second reaction zone is obviously enhanced to produce clean gasoline and more propylene simultaneously. 因此,催化剂CGP-1在MIP-CGP装置的第二反应区中能够很好地裂化小分子烯烃,从而达到在降低汽油烯烃的同时多产丙烯的目标。
- As for the second reaction, atom Cl attacks atom O bonded by Cl in nitrate, and the bond N-O breaks to create the products. 第一个反应是Cl原子进攻硝酸氯中的Cl原子，同时O-Cl键断裂生成产物；
- The second reaction we tested was diastereoselective Michael-Aldol annulation of B-keto ester 121 with methacrolein to give a key intermediate for synthesizing (-)-Huperzine A. 其次，我们以手性胍为催化剂，探索了带有手性辅基的B-酮酯121g、121h和121i与异丁烯醛的不对称Michael/Aldol串联反应，不对称地合成天然石杉碱甲((-)-Huperzine A)的关键中间体123。
- It was found that by enhancing heavy oil conversion and increasing the catalyst inventory of the second reaction zone,the sulfur content of cracked naphtha produced by MIP-CGP process could reach the required level. 结果表明,通过提高转化率和第二反应区催化剂的藏量,MIP-CGP工艺可以将催化裂化汽油中的硫含量降至所要求的水平。
- The second snub settled his hash. 第二次碰壁使他不敢再找麻烦了。
- The second term commences in March. 第二学期自三月开始。
- The on line reaction mix sampling (RMS) system was set up, installed at the outlet of the first reaction zone and the second reaction zone of the Maximizing iso-paraffins(MIP) reactor. 在多产异构烷烃的催化裂化工艺反应器的第一反应区和第二反应区出口现场取样,并测定其气体组成、液体组成以及产物分布。
- The game didn't heat up until the second half. 游戏玩到后半场才热闹起来。
- The second batch of sugar is better than the first. 第二批制成的糖比第一批好。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- The team recovered its lead in the second half. 该队在下半场重新领先。
- Take the second turn on the right. 在右边第二个转弯处拐弯。
- Look at the second paragraph on page fifteen. 请看第十五页的第二段。
- He fouled the same player again in the second half. 他在下半场对同一运动员再次犯规。
- You're the second to ask me that. 你是第二个问我这件事的人。
- Her office is on the second floor. 她的办公室在三楼。
- Take the second turning on the left. 在第二个转弯处向左转。
- Tom is the second son he has an elder brother. 汤姆是次子--他有一个哥哥。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
