but it's not that big of a difference.

但是这两者技术要求差别不大
It won't be long before we're using these same kind of devices

相信不久以后
to both record--to test what's going on--

这个装置就可以同时记录和反馈
and to act in the right way and response.

大脑的信号并做出相应的回应
This is a beginning of real interface between machines and brains.

这开启了真正的人机交互之门
Dialysis, this is an example of a membrane dialysis unit.

透析技术这里是一个膜透析的装置
Dialysis is done millions of times per day

在美国乃至全世界
in this country and around the world,

每天进行着上百万次的透析
and keeps people alive when their kidneys have failed

肾脏丧失功能的病人靠透析得以存活
and they wouldn't survive for even a week without dialysis.

如果没有透析他们活不过一个星期
You can keep people alive for many decades

通过周期性的透析除去血液中的代谢废物
with periodic dialysis to remove waste products from the blood.

可以使病人寿命延长几十年