开式齿轮传动中,其主要失效形式是磨损和轮齿折断,因此,设计计算中一般应按轮齿弯曲强度设计,然后考虑磨损适当增大模数。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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