Its primary functions are to reduce wear and tear between bearing and shaft, and raise longevity of shaft and connection rod.

其主要功能是减少轴瓦与曲轴间的滑动摩擦磨损，提高发动机曲轴及连杆的使用寿命。

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Its primary functions are to reduce wear and tear between bearing and shaft, and raise longevity of shaft and connection rod.

其主要功能是减少轴瓦与曲轴间的滑动摩擦磨损，提高发动机曲轴及连杆的使用寿命。

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