man-made diamond造句

例句与造句

1. In present work , mirror turning is carried out using man - made diamond cutting tool ( pcd ) and ordinary precision lathe , showing important practical value and economical benefit
   摘要在普通精密机床上用人造多晶金刚石( pcd )刀具加工出镜面，具有重要的实用价值和经济意义。
2. It's difficult to find man-made diamond in a sentence. 用man-made diamond造句挺难的