The results show that input pressure is very important in the analysis of the static and dynamic characteristics of hydrodynamic lubrication radial sliding bearing.
结果表明：供油压力是分析液体动压径向滑动轴承动静特性的一个不可忽略的因素。
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The second part puts importance on the analysis of features of Chang Xiangyu's singing methods from sound production, respiration, enunciation and lubrication respectively with examples.
This paper introduces the method of calculating minimum oil film thickness between teeth of gear pump on the basis of elastohydrodynamic lubrication theory, with achieving computer-aid-analysis.