在选择好美国大学专业之后，就要开始准备美国研究申请材料了，其中最为重要的就是推荐信，对于计划申请美国研究生的人来说，好的推荐信不仅可以敲开美国名校的大门还可以为你的申请铺平道路，下面就来看看申请美国控制与系统专业的研究生如何写推荐信。

　　Dear Sir or Madam:

　　The purpose of this letter is to recommend Mr. Yi, a worthy candidate for admission to your graduate program.

　　Mr. Yi have ever took my course "Introduction to Control". I was deeply impressed with him not only the good score "A" he got in the class but also thehighly active and devout attitude he learn Control Theory. Sometimes, he came to my office to ask me some interesting questions about the Control and System theories not mentioned in the autobiology of my class and to discuss the development and application of control theory in Science and Industry with me. He imagined this theory is truly an amazing subject. If people understand and use it very well, this world will get better. "Well!" I thought, " This young man is really like Control."

　　Then he took part in my research "Design of Sinusoidal Oscillators Using the Theory of Variable Structure Systems" (published in the Int. J. of Electronics, 1992, Vol. 72, No. 1) to design the oscillator circuits. From simulating the circuits he designed with PSPICE to assembling the electronic elements. he shown me the enthusiam and hardily spirit in his work.When gettinga new idea or finding some questions,he always shared his opinion about how to overcome the error or improve the experiment results to me.After try-and-error and ameliorating the circuit many times, we finally got a rined but good-performance oscillator.

　　Mr. Yi also got admirable grades in a couple of courses of control and systems, I truly believe he has strong learning capability and enthusism in this field. So I no doubt that he will become a good student in your esteemed department. Should you need any further information about Mr. Yi, please do nothesitate to contact me.

　　Sincerely Yours

　　通过上面对美国控制与系统专业推荐信范文的分享，相信对于很多计划申请美国研究生的学生可以参考上面的信息来提前做好推荐信的准备和规划。

　　经典内容回顾：

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　　2.美国研究生申请文书是制胜关键

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