地壳应力场的研究是地震学中的一个基本课题。

The study of stress field in the crust is a basic problem in earthquake study.

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正是这一应力导致了四川地震，并将引发其他地震。

It is this strain that led to the Sichuan quake and will lead to others.

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正是这一应力导致了四川地震，并将引发其他地震。

It is this strain that led to the Sichuan quake and will lead to others.

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