然后，他们把死鼠的身体弄热，安装上人造心脏泵，再把死鼠放在饥饿的蟒蛇面前。
Then they warmed up the rats, set the hearts pumping, and dangled them in front of hungry boas.
安装一台血泵或人造心脏不太可能成为心脏疾病的主流治疗技术。
Installing a pump or an artificial heart is not likely to become mainstream treatment for heart disease.
但是，和机械泵以及人造心脏一样，干细胞疗法对于治疗心脏病来说也是一种高技术、高成本的解决方案。
But like mechanical pumps and artificial hearts, stem cell therapy is a high-tech, high-expense solution for dealing with heart diseases.
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