In the compound process of ultrasonic vibration and grain machining, the discontinuous grinding mechanism caused by ultrasonic vibration is the main factor decreasing normal grinding force.

深入研究了超声振动和磨粒切削的复合过程，指出超声振动形成的断续磨削机制是降低法向磨削力的主要原因。

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In this paper, a grinding experiment on a piston skirt profile coated with compound material in a high-power locomotive diesel engine is carried out under a rating condition.

通过对某大功率机车柴油机活塞裙部喷涂复合材料层后在标定工况下装机进行磨合实验。

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The new material for medium speed grinding roll-MnMo compound high chromium cast iron has been developed successfully.

成功研制了中速磨磨辊新材料——锰钼复合高铬铸铁。

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After his death in 1954, the company went on grinding out its books every month and every year out of its Bronx compound, with little competition, decade after decade.

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