Blood is pumped through the oxygenater;

血液泵送至氧合机
it goes from being oxygen-poor, carbon dioxide-rich,

由乏氧富二氧化碳的状态
to being carbon dioxide-poor, oxygen-rich

转为乏二氧化碳富氧状态
and then goes back into your body.

然后流回体内
You can remain on a pump like this for several hours

你能靠这样的机器坚持好几个小时
while the surgeon does a heart transplant, replaces your heart,

与此同时医生可以实施心脏移植换心
while the surgeon does a valve replacement.

或者进行瓣膜置换术
While the surgeon replaces a coronary artery, for example.

或者还可以是冠脉搭桥术
This machine can keep your--

这个机器能维持
can basically serve as an

能在手术期间
artificial heart and lungs during surgery.

维持基本的心肺功能
Of course, one of the things that you would like to do

当然你更希望做到的一件事就是