真理，哪怕只见到一线，我们也不能让它的光辉变得暗淡。——李四光。

Even if there is only a gleam of truth, we should never make its brilliance dim. - li Siguang.

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随后的年代中，李四光以构造体系为核心，创立了地质力学，并以这种理论去解决我国资源和地质灾害的一些重大问题。

Lee in 1929. In after years, he created geomechanics with tectonic system as its core and some important problems on the resources and geological hazards of China were solved by this theory.

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从李四光教授对地层古生物、第四纪冰川和地质力学三方面的研究，来介绍他的学术思想和科研成果以及他的地壳运动的理论。

The paper gives an introduction of Li Siguang's academic thought and achievements in three aspects, on stratigraphic paleontology, Quaternary glaciology and geomechanics.

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