例句與造句

1. Artificial gem crystal manufacturing , processing and marketing
   人造寶石晶體的制造、加工、銷售。
2. A small natural or artificial gem used as a bearing in a watch
   鉆石小的天然的或人造寶石，用作手表中的軸承
3. A hard , brilliant , lead - containing glass used in making artificial gems
   鉛質玻璃用來制人造寶石的硬而耀眼的含鉛玻璃
4. Scp - zro2 ( gem - grade zirconia ) has high purity and is mainly used for making cubic zirconia crystal ( artificial gems ) , and as additive for optical glass and fibre with high index of refraction
   具有高純度，是制造立方氧化鋯晶體（人造寶石）的主要原材料，也用作高折射光學玻璃和光學纖維的添加劑。
5. It's difficult to find artificial gem in a sentence. 用artificial gem造句挺難的