precision index plate

例句：

1. 1.The precision index plate is used to measure the accuracy of a machine's operation.
   精密索引板用于测量机器操作的准确性。
2. 2. The engineer used the precision index plate to ensure that the machine was running at its maximum efficiency.
   工程师使用精密索引板确保机器运行在最大效率。
3. 3. The precision index plate was crucial in the development of new software, as it allowed for precise calculations and adjustments.
   精密索引板在软件开发中至关重要，因为它允许进行精确的计算和调整。