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- Eventually, the long lifetime performance of MEA was tested. 在此确定条件下,对MEA进行了长寿命放电性能测试。
- The influence of the thickness and polytetrafluoroethylene(PTFE) content of WML on the performance of MEAs was studied. 研究了WML的厚度和聚四氟乙烯(PTFE)的含量对膜电极性能的影响，并采用了两种新型造孔剂（碳酸氢按和硫酸铵）优化WML的孔结构。
- A brief introduction about the processing design of equipment for MEA are described. It used o-toluidine as raw material through ethylene alkylation to produce MEA. 简述以邻甲苯胺为原料，进行乙烯烷基化反应，生产MEA的原理，工艺过程及其设计。
- The fabrication technology of MEA had been reviewed.The analysis results showed that the utilization of the catalyst in PEMFC was only about 30%， and the structure of the MEA was not superior. 分析结果表明:目前质子交换膜燃料电池的催化剂利用率最多30%25左右，膜电极三合一组件的结构并未达到最佳设计。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Are you willing to stand surety for your brother? 你愿意当你弟弟的保证人吗？
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Modern paintings are not to my taste. 现代画不合我的口味。
- Her clothes are always right up to the minute. 她的衣服总是式样最新的。
- Her eyes are the most catching I have ever seen. 她的眼睛是我见到过的最迷人的。
- The children are playing on the swings in the park. 孩子们在公园里荡秋千。
- We should practice economy even if we are rich. 即使我们富裕了也仍应该厉行节约。
- Reading and writing are different skills. 阅读与写作是不同的技能。
- The tables are firmly fixed to the floor. 桌子都牢牢地固定在地板上。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The uses of this machine are manifold. 这台机器有多种用途。
- Flags are flaunting in the breeze. 旗子在微风中飘扬。
- Clean clothes and good manners are prepossessing. 清洁的衣服和良好的举止能给人以好感。
- My muscles are sore from lifting weights. 我的肌肉因为举重而感到酸痛。
- It irks us to wait for people who are late. 等候迟到的人使我们厌烦。
