You can tell the age of a tree by counting its rings, but these records of trees' life really say a lot more.
你可以通过数年轮来判断树木的年龄，但是作为树木生命的记载，年轮能说明的东西远不止于此。
So, by measuring the ratio of the two isotopes in the rings of trees, and matching the result to the age of the ring, a history of hurricanes spanning the life of the tree can be reconstructed.
因此，通过测量树的不同年轮(ring)中两种氧同位素的比例，并将结果比对年轮所显示的树龄，就可再现树木一生中所经历的所有飓风。
They're a bit like tree rings, and you can count those ridges and it basically gives you the age of the animal.
他们有点像树的年轮，可以数那些条纹，基本上它会告诉你这个动物的年龄。
The team sliced the fossils in half to reveal a series of dark bands in the shell that, like the rings of a tree, record the organism's age.
研究人员将化石切开，显露出贝壳上的一系列暗纹——就像树干上的年轮一样，这些暗纹表明了个体的年龄。
We can tell the age of a tree from its growth rings.
大树的年龄，告诉我们它的成长过程。
You can tell the age of the tree by the number of rings in the wood.
从木头的年轮你会知道这棵树的树龄。
Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
树木的年轮和季节性沉积被称为年变层，可计算用于确定绝对年龄。
Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
树木的年轮和季节性沉积被称为年变层，可计算用于确定绝对年龄。
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