It introduces the belt-drive table structure, the torque and rotate speed measuring principle as well as the load principle. Finally, the experimental system improvement plan has been proposed.

介绍了实验台的组成结构，转矩和转速测量的原理及加载的原理，提出了实验系统改进的方案。

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A work bench improvement plan is proposed from the aspect of system rotational speed and torque sensitivity of the differential gear train.

进而从差动轮系转速、转矩灵敏度的角度提出了试验台的改进方案。

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The improvement plan, work principles and reform result on electric control system of main shaft hoist in Linhuan Coal Mine are introduced, and the result is fine.

介绍了临涣煤矿主井提升机电控系统的改造方案、工作原理及改造效果，经过改造后的电控系统效果良好。

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