Glass requires more abrasive tooling; for example, diamond tip tools with abrasive covers. These are used more for etchingglass than truly cutting the material.
玻璃材质则是用耐磨的刀具处理，例如，粗糙表面的金刚石，主要用于蚀刻而非切割玻璃。
2
The artist must have spent hours etching the image on the glass.
这位美术家一定花了好几小时把这画像蚀刻在玻璃上。
3
Normally for bulk glass, etching increases the strength.