介绍了微动的两种研究方法：微动图和能量的方法。
Two research methods in fretting, fretting maps and energy approach were presented.
本研究通过对径向微动装置的改造实现了切向与径向微动的复合。
The combination of radial and tangential fretting was successfully fulfilled though a reconstruction of radial fretting tester in this study.
在新型径向微动试验装置上，改变试样的倾斜角度，实现了径向微动和切向微动的复合。
The combination of radial and tangential fretting was realized by changing the inclined Angle of specimens on a newly developed radial fretting tester.
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