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- Synthesis of o phenylenediamine from o nitroaniline by catalytic hydrogenation at lower pressure was studied. 以邻硝基苯胺为原料，采用低压催化加氢还原技术合成邻苯二胺。
- Keywords hydrazine hydrate;substituted o nitroaniline;reduction; 水合肼;取代邻硝基苯胺;还原;
- Keywords Cyclic ureas;o Nitroaniline;Selenium catalyzed carbonylation; 环脲;邻硝基苯胺;硒催化的羰基化;
- Keywords microwave irradiation;N alkyl o nitroaniline;building block;synthesis; 烷基化邻硝基苯胺;微波辐射;构建单元;合成;
- A bright red welt rose on his arm. 他的手臂上起了明显的条状红肿。
- Keywords HeI photoelectron spectroscopy;etra chloro o phathalic anhydride acid;quantum chemistry; 四氯邻苯二甲酸酐;量子化学计算;
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- He wore a red carnation in his buttonhole. 他的扣洞上了一朵红色康乃馨。
- Closing time at this pub is eleven o' clock. 这酒馆的打烊时间是十一点。
- The boy is daubing a piece of paper with red ink. 那孩子正在用红墨水在纸上乱涂。
- We've got the OK from the council at last. 我们终於获得了委员会的同意。
- He pulled a red sweater on over his shirt. 他在衬衣外面套上了一件红色毛衣。
- Keep on go till you come to a red brick building. 一直往前走直到一座红砖楼为止。
- The land is laid down with red or white clover. 这块土地种上了红花和白花苜蓿。
- Everyone at the rally wore red ribbons as favours. 参加集会的人都系著红丝带作为支持大会的标记。
- Her criticisms were enough to make anyone see red. 她那些批评任谁都得火冒三丈。
- I have a red tracksuit with fleecy lining. 我有一件红色的有羊毛衬里的运动服。
- The child's mouth formed a big O in surprise. 那孩子惊奇得张著嘴像个大O字。
- How much money are you riding on the red horse? 你在那匹红马身上押了多少钱？
- How much red ink is there in the ink-pot? 墨水瓶里有多少红墨水？
