由于阀门使用的高频率，以及石英粉末的研磨特性，都要求耐磨性很高的阀门才经受得起。
The high cycle rate of the valves, and the abrasive nature of the quartz powder require an abrasion resistant valve that will last.
矿渣和矿物研磨料应满足SSPC AB1的要求。
Slag and mineral abrasives shall meet the requirements of SSPC AB1.
分析了磁力研磨加工过程中单个磁性磨粒的受力状况和磨削机理，论述了磁性磨粒的性能要求和制备工艺。
The stress and grinding mechanism of a single magnetic abrasive grain in the magnetic abrasive finishing are analyzed. The required properties and preparation technologies of MAGS are discussed.
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