A new surfactant heavy crude oil sulfonates ( hcos ) was synthesized from daqing heidimiao oil with fuming sulfuric acid 考察了酸烃比、反应温度、反应时间对磺化反应的影响。
The test results showed that the reaction time was shortened and the yield of the product was increased 通过试验，缩短了酸化反应时间,提高了反应收率，达到了优化工艺的目的。
Response time : it is the time between issuing a request and the first byte received as a response from the server 反应时间：指的是服务器接收到请求直到返回应答之间的时间。
Here we introduced microwave into the reactions and improved the reaction rates and yields greatly 成功地将常压微波有机合成技术应用到氰化反应，使反应时间大大缩短、得率提高。
However , with the higher response time , user can observe the moving tracks while the mouse is in the movement 反应时间快达，则将游标移动无时差，移动过程清楚易见，不带来作业困扰。
This improves the reaction time of the web service by reducing the processing required by the web service server 这样，通过减少web服务服务器需要进行的处理，缩短了web服务的反应时间。
It was also shortened by increasing the concentration of copper sulfate and by decreasing the concentration of edta 镀液组成及工艺参数对镀速，即单位反应时间内的增重也有很大的影响。
However , because of high speeds and the low trajectories of modern asms the reaction times are reduced 然而,由于现代反舰导弹具有高速度、低弹道等特点,极大降低了舰艇防御的反应时间。
Data indicates tae kwon do fighters react in only 0 . 18 seconds - nearly twice as fast as the blink of a human eye 一名跆拳道选手的反应时间只有0 . 18秒，差不多是人类眨一次眼所需时间的一半。
The effects of reaction time , rati o of reactants , quantity and stability of catalyst were examined 探讨了反应时间、酸醇比、催化剂吸附量等因素对反应的影响,并考察了催化剂的重复使用性能。
