本文介绍了机械设计与摩擦学之间的关系，摩擦学设计的内容和今后的任务。
This paper introduces the relationship between machine design and tribology, and the contents of tribology design and the tasks in the future.
着重介绍了改善钢表面摩擦学特性的方法和提高离子束加工效率的途径。
The methods for improving the tribology characteristics of the steel surface and increasing the efficiency of ion beam processing are studied.
介绍了磁流体往复轴密封的原理，从摩擦学设计角度分析了其设计和使用中要注意的问题。
The principle of magnetic-fluid reciprocating shaft seal is introduced, some problems of its design and application are analyzed from the point of view of tribological design.
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