例句與造句

1. most of them were preserved by the two-step freezing method
   其中，絕大多數(shù)藻類是采用兩步冰凍法保存。
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
   由于兩步法保存技術(shù)的局限性，玻璃化和包埋脫水法等新技術(shù)在某些藻類的種質(zhì)保存中可能有較大的應(yīng)用潛力。
3. It's difficult to find step freezing in a sentence. 用step freezing造句挺難的