英语释义
1
n a solid formed by the solidification of a chemical and having a highly regular atomic structure
2
n a crystalline element used as a component in various electronic devices
3
n a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
4
n colorless glass made of almost pure silica
5
n glassware made of quartz
6
n a protective cover that protects the face of a watch