编

He beget s not, nor was He begotten, and there is none like Him. Quran, 112:1-4

他没有生产，也没有被生产，没有任何物可以做他的匹敌。

These provide a foundation for the control of grinding quality of spiral bevel gear.

研究结果为螺旋锥齿轮磨齿质量的控制提供了依据。