In this paper, the fuzzy reliable optimum design's mathematical model of the spur gear under the action of the sliding friction is set up by using the fuzzy and reliable theory.

通过应用模糊设计理论和可靠性设计理论，建立了摩擦力作用下直齿圆柱齿轮传动的模糊可靠性优化设计的数学模型，并对其进行优化处理。

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Because of their ability to reduce friction and wear, they are usually used as the material for making the worm wheel in a worm gear set.

由于具备减摩性和耐磨性的性能，它们通常用来制作涡轮减速器中的涡轮。

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