crude zinc造句

例句与造句

1. Study on preparation of active zinc oxide from a crude zinc oxide powder
   一种用初级氧化锌粉制备活性氧化锌工艺
2. The research on the preparation of nanometer active zinc oxide from crude zinc oxide
   由粗氧化锌制备纳米活性氧化锌的研究
3. Preparation of active zinc oxide from crude zinc oxide by ammonia complex leaching technique
   氨配合法制备活性氧化锌过程研究
4. It's difficult to find crude zinc in a sentence. 用crude zinc造句挺难的