结论在一些地区输尿管钙石的形成可能与水的硬度有关。

Conclusion the formation of ureteral calculus probably relating to the water hardness in some areas.

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对比论述了后生动物的演化和环境因素在叠层石的形成与衰减的过程中谁占主导作用。

At last, this paper discusses what is the dominant function in the formation and decline of stromatolites beween the evolution of metazoans and changing environments.

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沿着美国东海岸，最南边的冰川运动被大量的沙子和终碛石的漂流沉积物（形成了长岛和科德角）所记录下来。

Along the east coast of the United States, the southernmost advance of this ice is recorded by the enormous sand and drift deposits of the terminal moraines that form Long Island and Cape Cod.

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