论文用到的专业性词汇比较多，很多时候在写英文的时候可能会感到困难，我用过的是这个，你看一下吧。
第一步，在首页三大板块中点击【文档翻译】。
第二步，点击【选择文件】，从电脑中选中文件（注意这篇文档里只放论文摘要部分），点击【打开】。
第三步，文件上传之后，看到翻译语种选择，设置为【简体中文】转换【英语】，点击右下角【立即翻译】。
第四步，等到翻译完成，屏幕上会跳出温馨提示，点击【查看文件】，就能找到保存在电脑上已经翻译成英文的论文摘要了。
This report introduced the structure and the principle of QDF. Through researches and applications of power system, transmission system, brake system, hydraulic pressure system, electric and monitoring system, the performance and reliability of QDF is improved. QDF passed CNCA Science and Technology Achievements Appraisal on April 2008, which proved its performance parameter was above national leading level and international advanced level, and its flameproof monitoring system was more superior than other foreign advanced products.
