drag of kerf

例句：

1. 1.The engineer carefully measured the drag of the kerf before making any adjustments.
   工程师仔细测量了钻头磨损量，然后才做出任何调整。
2. 2. The drilling process requires careful monitoring of the drag of the kerf to ensure quality.
   钻孔过程需要仔细监测钻头磨损量，以确保质量。
3. 3. The engineer used a special tool to measure the drag of the kerf and optimize the drilling process.
   工程师使用一种特殊工具来测量钻头磨损量，并优化钻孔过程。