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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Brian began to tear blades of grass from between the bricks.

布赖恩开始从砖缝儿里拔草叶。

《柯林斯英汉双解大词典》

These cells are gently shifted by the fluid - the tear film - between contact lens and cornea, temporarily creating a new structure to the eye.

位于隐形眼镜和角膜之间的那层泪膜液体会轻轻移动着这些上皮细胞，暂时形成一个新的眼部结构。

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Leaders of this school of thought sought to tear up the barbed wire between nations, the literal and legal forms.

FORBES: EU-Topia: Why Europe Can't Exist

There is a growing consensus among Republicans, not to mention Democrats, that another failure like last summer's Operation Forward Together will tear the fabric of trust between the Bush and al-Maliki command centers.

NPR: Hiding the Implicit Timetable in Iraq

These sites tear down the traditional barriers between those in power -- be they celebrities or politicians -- and their fanbase or supporters, providing the semblance -- if not the reality -- of personal involvement and a forum for discussion.

CNN: Will the 2008 USA election be won on Facebook?