The technique for turning a uniform grating into a chirped grating by using a simple strain method is reported and the corresponding theory is deduced.
报告了用简单的应力方法使均匀光栅成为线性啁啾光纤光栅的技术，并推导出了相应理论。
The principle is simple: a fault segment that has ruptured in a large quake in the past will-once enough strain has again accumulated-likely fail again in a similar-size earthquake.
原理很简单：一个在之前的强地震中断裂的断层带，一旦再次聚集了足够大的压力后，将可能再次引发同等级别的地震。
The simple fact that I had to strain to actually see the creases was proof enough for me.
这个简单的事实，我不得不应变，以实际看到的折痕的证据足以证明对我来说。
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