The cryoprotectant is basically a medical-grade anti-freeze, if you like.

如果您愿意， 冷冻基本上是一种医级防冻。

The cryonicists then try to replace some of the body's water with a cryoprotectant, which basically acts like human antifreeze.

然后，人体冷冻专家尝试一种冷冻代替人体的部分水分，这种冷冻的作基本上类似于人体防冻。