人体冷冻法

例句：

1. 1. The technique of human cryonics has been studied for decades.
   人体冷冻保存技术已经研究了几十年。
2. 2. Some believe that cryonics could be a way to preserve the memory of those who have passed away.
   一些人认为，冷冻保存技术可能是保存已故者记忆的一种方式。
3. 3. Cryonics is still an experimental field with many unanswered questions.
   冷冻保存技术仍然是一个实验领域，有许多未解答的问题。