试验表明，当超声工具头与被加工工件的间隙在一定的范围内，能在超声研磨条件下加工出高质量的超光滑表面。

Only when the machining gap is in specific ranges, the smooth high quality surface can be obtained under ultrasonic polishing.

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在非踝足矫形器缸体腐蚀建设是可靠的研磨环境，能够经受最艰难的条件。

The non-corrosive construction of the AFO cylinder body is reliable in abrasive environments, able to withstand the toughest conditions.

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以大型矿用球磨机研磨体为应用对象，在实验室条件下研究了硅、铜对低铬白口铸铁腐蚀磨损耐磨性的影响。

The effect of Si and Cu on the corrosive wears resistance of low chromium white cast iron for making grinding body of large grinding ball mill used in mine was studied in the conditions of laboratory.

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