fineness-of-grind gauge

例句：

1. 1.The engineer used a fineness-of-grind gauge to measure the accuracy of his machine.
   工程师使用研磨精度计来测量机器的准确性。
2. 2. The fineness-of-grind gauge was crucial in ensuring the quality of the final product.
   研磨精度计在确保最终产品的质量中起着至关重要的作用。
3. 3. The fineness-of-grind gauge was used to monitor the consistency of the grinding process.
   研磨精度计被用来监测研磨过程的一致性。