high frequency drill

例句：

1. 1. The engineer used ahigh-frequency drill to make holes inthe metal sheet.
   工程师使用高频钻头在金属板材上打孔。
2. 2. The high-frequency drill is very effective for cuttingthrough hard materials.
   高频钻头对于切割硬质材料非常有效。
3. 3. During the construction process, the high-frequency drill was usedto ensure the accuracy of the holes.
   在施工过程中，高频钻头被用来确保孔洞的准确性。