增大模数、降低齿高、降低滑动系数、提高齿面硬度、降低齿面粗糙度、采用抗胶合润滑油等措施都有助于提高齿轮抗胶合的能力。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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