instantaneous rate of deformation

例句：

1. 1. Theearthquake was so sudden that everyone was caughtoff guard.
   地震来得如此突然，每个人都措手不及。
2. 2. The scientist discovered an instantaneous cure for the disease.
   科学家发现了一种对这种疾病瞬间有效的治愈方法。
3. 3.The car's brakes were instantaneously applied when the driver hitthe brake pedal.
   当司机踩下刹车踏板时，汽车的刹车立即被施加。