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

如果您愿意， 冷冻保护基一种医级防冻。

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

，人体冷冻专家尝试一种冷冻保护代替人体的部分水分，这种冷冻保护的作基类似于人体防冻。