来自《耶鲁大学开放课程：生物医学工程探索第18集第18集》

You've got to apply really high stresses

你可以施加非常高强度的应力
in order for it to deform but it does deform elastically.

使其发生形变但它的确会发生弹性形变
Wood does under some conditions, bones do;

在某些条件下木头也可以骨头也可以
all materials do under at least

所有的材料在一定的应力范围内
some range of stress conditions.

都可以发生弹性形变
Some are going to be what's called more compliant,

一些材料在发生形变时会显得更柔顺些
that is they're-- at a given stress,

也就是说在给定的应力
at a given force application

在给定的外力下
they deform more.

这些材料发生的形变更明显
That's a compliant material,

这就是柔性材料
one that's very stretchy or very elastic.

也就是延展性和弹性非常好
Or stiff, one that doesn't deform very much

刚性材料其在应力作用下的形变