diamond grains的用法和样例：
例句
- A new special diamond drill which combines ultrasonic vibrating with grinding of diamond grits is introduced.
介绍一种新研制的能把超声振动和金刚石磨粒磨削结合在一起的特种金刚石钻头。 - Evaluating and measuring the interfacial bonding strength between filling alloy and diamond grits is a key issue in the study and application of brazed diamond tools.
钎料与金刚石磨粒结合强度的测定与评价是钎焊金刚石工具研究与应用中的关键性问题。
