grinding ball的用法和样例：
例句
- The non-equilibrium crystallizing processes and the characteristics of the metal mould nodular iron grinding ball have been discussed in this paper.
摘要用彩色金相法分析研究了金属型球铁磨球非平衡凝固过程和特性。 - Variation and failure of the grinding ball of high chromium white cast iron during production and service are mainly caused by the internal stress.
内应力是造成高铬白口铸铁磨球在生产和服役过程中出现变异和失效的主要原因。
