简单地说，当建筑物倒塌落在物体或家俱上的屋顶重力会撞击到这些物体，使得靠近它们的地方留下一个空间。这个空间就是被我称作的“救命三角”。物体越大，越坚固，它被挤压的余地就越小。而物体被挤压得越小，这个空间就越大，于是利用这个空间的人免于受伤的可能性就越大。-Simply put, when buildings collapse, falling objects or furniture inside crushes the roof of the gravity of these objects, so close to where they leave a space. This space is what I call the " triangle of life."　The larger the object, the stronger, it is squeezing the smaller room. The object compacts, the more small, the larger the space, who is using this space free from injury more likely.