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- With the mole ratio of p - toluic acid and uren to be 1: 1 .6 and sectionalization heated - shielded,the product yield is 75.6% . 当对甲苯甲酸与尿素的摩尔比为1:1.6,采用分段保温的加热方式,产品收率达75.6%25。
- The improved conditions were: mol ratio of p - toluic acid to urea was 1:16, employing a sectional heating and temperature maintenance technique.The yield was 75. 6% . 当对甲苯甲酸与尿素的摩尔比为1:1.;6;采用分段保温的加热方式;产品收率达75
- Keywords solvent;p toluic acid;p tolunitrile;synthesis; 溶剂;对甲苯甲酸;对甲苯甲腈;合成;
- Keywords phthalic acid;toluic acid;polarography;determination; 邻苯二甲酸;邻甲基苯甲酸;测定;极谱法;
- Closing time at this pub is eleven o' clock. 这酒馆的打烊时间是十一点。
- We've got the OK from the council at last. 我们终於获得了委员会的同意。
- Determination of phthalic acid in toluic acid by single-sweep oscillopolarography 单扫描示波极谱法测定邻甲基苯甲酸中的邻苯二甲酸
- Keywords tolunitrile toluidine xylene ammoxidation toluic acid amination tolualdehyde;oximation dehydration synthesis; 甲(基)苯甲腈;甲(基)苯胺;二甲苯;氨氧化;甲(基)苯甲酸;氨化甲(基)苯甲醛;肟化;
- The child's mouth formed a big O in surprise. 那孩子惊奇得张著嘴像个大O字。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Ok may I have your last name and first initial, please? 好的。请您告诉我贵姓及大名的头一个字母。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗?那是个严峻的考验。
- Only when everything is ok will the patent be registered. 只有一切都顺利,才能登记专利。
- Have you finished lunch already? It's only12 o' clock! 你已经吃过午饭了吗?现在才12点。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She's OK, but she always likes to blab about how successful her husband is. 她还可以啦,不过她老爱提她老公有多成功。
- She dropped acid in high school. 她高中时代服迷幻药。