This paper discusses the similarity method of imitating mechanical and electrical system, and with the help of four terminal parameter it also analyzes the main shaft torque response of grinder.

通过对机电系统相似模拟法探讨，利用四端参数法解决了粉碎机主轴扭矩响应求解问题。

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Two kinds of usual methods to measure the parameter of fragment velocity were introduced, and implementation of terminal effect research with digital image processing technology is studied.

介绍了两种常用的测量破片速度参数的方法，研究了数字图像处理技术在终点效应研究中的实现方法。

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The oil terminal, as a department of energy consumption, under the normal conditions, adjusting run parameter rationally is the aim of this study to save energy.

油库作为耗能的一个部门，如何在现有生产条件下，合理调整运行参数以达到节约热能的目的是本文研究的重点。

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