step freezing造句

例句与造句

1. most of them were preserved by the two-step freezing method
   其中，绝大多数藻类是采用两步冰冻法保存。
2. vitrification and encapsulation-dehydration are two new techniques and may have significant potential in the cryopreservation of some species of algae due to the limitation of the two-step freezing method
   由于两步法保存技术的局限性，玻璃化和包埋脱水法等新技术在某些藻类的种质保存中可能有较大的应用潜力。
3. It's difficult to find step freezing in a sentence. 用step freezing造句挺难的