本书是夏丏尊在长沙第一师范学校和白马湖春晖中学的作文课讲稿，后经刘薰宇先生结合自己的教学实践修改编辑成书，其中精义迭出。
我感到他言之有理，因而逐渐注意文章作法，决心努力加以改进。
I saw the justice of his remarks, and thence grew more attentive to my manner of writing, and determined to endeavor to improve my style.
文章简要介绍了热工研究院维修优化和管理技术开发与应用的基本模式与作法。
This paper briefly introduced the basic model and method of the maintenance optimization and management technology that Thermal Power Research Institute developed and applied.
文章介绍了作者在使用该机型的过程中就所发现的问题进行的改进，这些作法对完善该机型及保障生产起到了积极的作用。
The improvements on the problems related to the operation of this type of machine are introduced, which to play positive role in the improvement of it and ensuring the production.
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