rhombic knurling

例句：

1. 1. The engineer used a rhomboid knurling to smooth the surface of the metal.
   工程师使用一个棱镜抛光来平滑金属的表面。
2. 2. In the manufacturing process, rhomboid knurling is often used to improve the quality of the finished product.
   在制造过程中，棱镜抛光经常被用来提高成品的质量。
3. 3. The rhomboid knurling technique has become increasingly popular in recent years, as it offers superior surface finishand durability.
   近年来，棱镜抛光技术变得越来越受欢迎，因为它提供了更好的表面质量和耐用性。