We see that the signal that's actually in the heart, we can use it to tell people that they're having a heart attack even before they have symptoms so we can save their life.
这些我们看到的信号实际上就是猪当时心脏跳动的真实现状。 而这些图示，我们可以用它来向人们说明，在猪发生心脏病之前， 已经被检测出症状了，从而及早的挽救它们的生命。