This paper deals with the application of laser holography in the research on the contact state and the static and dynamic stiffness of mechanical joints.
本文介绍应用激光全息摄影研究机械结构结合面的接触情况及静动刚度的方法。
The paper studies the mechanical reliability based on wear of hinge. It analyses the principle and method of the research of reliability, and introduces its application with examples.
研究了基于铰链磨损的机构可靠性，分析了可靠性研究的原理和方法，并通过实例说明其应用。
The research on mechanical effect of the chemical action of water-rock on rocks involves many subjects and domains with wide application prospect.
水—岩化学作用对岩石力学效应的研究涉及多学科多领域，具有广阔的应用前景。
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