freezing of semen

• 精液冷冻

freezing of semen的用法和样例：

例句

1. During earlier time the study mainly focused on screening and optimizing the cryprotective mediums and freezing methods, which exploited the technique of cryopreservation deeply.
   早期的研究多集中在对冷冻保护剂和冷冻方法的筛选与优化上，为猪精液冷冻保存进行了深入的探索。