So it is quite useful of measuring tree-age in the fields of old-tree protecting and making use of some precious tree species.

通过年轮测量树龄在古树保护及珍贵树种开采利用等领域有着十分重要的意义。

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So it is quite useful of measuring tree-age in the fields of old-tree protecting and making use of some precious tree species.

通过年轮测量树龄在古树保护及珍贵树种开采利用等领域有着十分重要的意义。

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