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- Keywords solid base;catalysis;n butyraldehyde;condensation; 固体碱;催化;丁醛;缩合反应;
- Keywords gas chromatography;capillary column;n butyraldehyde;isobutyraldehyde;n butanol;n butyric aicd; 气相色谱;毛细管色谱柱;正丁醛;异丁醛;正丁醇;正丁酸;
- Using inorganic base as a catalyst, 2,2-dimethylolbutyraldehyde was prepared by the aldol condensation from formaldehyde and butyraldehyde. 甲醛和丁醛在碱性催化剂的存在下,进行羟醛缩合反应,制备2,2二羟甲基丁醛。
- He fought in the N African campaign during the last war. 在上次战争中他在北非战役参战。
- That will be a total of eighty N T. 那总共八十台币。
- Rock-'n'-roll was started in the 1950s. 摇滚乐发源于20世纪50年代。
- Rest unclogs our 18th n substitute af. 请取消我方18日的订单，并以下列代替。
- I can't make head (n)or tail of these instructions. 我对这说明书摸不着头脑.
- The family of nine pig it I n one room. 一家九口挤在一间屋里。
- B: I like listening to Rock 'n' Roll. 我喜欢听摇滚乐。
- Go N to kill the dragon and get the blade. 从北边的房间出去，到山洞中杀龙，得炎之剑。
- They were delegates from India to the U. N. 他们是印度派到联合国的代表。
- Both transistors are not of the n. p. n type. 两个晶体管不都是n.;p
- Adjoin two new vertices X and Y to N. 在N中添加两个新顶点X和Y。
- Nouns are marked n in this dictionary. 名词在本词典中用n表示。
- TV:n visade ett program om olika l?nder. 电视演一个关于不同的国家的节目。
- The n vertical planes are called diagonal plane. n个竖直的平面叫做等分面。
- N Carolina to Florida and eastern Gulf of Mexico. 产于南卡罗莱纳州到佛罗里达州和墨西哥海湾东部。
- Tell me a word that begins with the letter N. 告诉我一个以字母N开头的单词。
- That's right. It's h - u - a - n - g. 对的。我姓黄。
