To grinding part surfaces with permanent magnet and magnetic grains is a new method of magnetic grinding.

利用永久磁体及磁性磨料对零件表面进行研磨，是磁力研磨中的一种新方法。

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Researchers surmise that over billions of years the debris should collide, grinding the KBO-type objects down to ever smaller pieces that were not part of the original Kuiper Belt population.

研究人员推测数这些碎块经过数十亿年的互相碰撞，柯伊伯型天体磨得更碎，柯伊伯带原始状态不再。

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SPINDLE HEAD: Part of a machine, which supports and drives the grinding wheel.

心轴顶端：设备的一部分，用于支撑和驱动磨削轮。

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Despite the upheaval of the past four years, the same employees and suppliers are for the most part grinding, polishing and welding for same customers just as they ever did.

ECONOMIST: Westinghouse RIP | The

And lest any potential consumer should worry about grinding his teeth on food laced with the stuff, only one part in 1, 000 needs to be added to achieve protection.

ECONOMIST: Pest control