By counting tree rings in some of the logs, the team found the trees were at least 75 years old when they were entombed.
看一些木头的年轮，科研小组发现，那些树被掩埋的时候至少有75年的树龄。
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。
There is a 1,700-year-old tea tree still living in southern China which is more than 100 feet tall and counting.
在中国南部仍然生长着一棵1,700岁的茶树，高100多英尺并在继续长高。
One of the pair, it was widely said, had turned out to be 200 years old, although I do not understand just how one determines such a fact: perhaps it is like counting the rings of a felled tree.
据许多人说，其中一种已经有200岁了，不过我不明白一个人怎么去确定这个事实：也许就像数那被砍下树木的年轮。
So Rituparna tries to prove to him his abilities and he says, see that tree there, I can estimate how many leaves there are on that tree by counting leaves on one branch.
所以睿都巴若那就试图证明自己的能力，他说，看那边的树，我只需数一根枝杈上的叶子，就能估算出树上叶子的总数。
The ice cores pulled up at WAIS will be dated by counting back these seasonal layers as if they were tree rings.
所以，在这里挖出的冰核都能像树木年轮那样按季节数出年份来。
Level diagram example shows the practicality and effectiveness of the construction theorem and counting theorem, which is a simple and easy method to construct a complete graph of the spanning tree.
平图例子验证了构造定理和计数定理的实用性和有效性，是构造一个完全图的生成树的简单易行的方法。
Level diagram example shows the practicality and effectiveness of the construction theorem and counting theorem, which is a simple and easy method to construct a complete graph of the spanning tree.
平图例子验证了构造定理和计数定理的实用性和有效性，是构造一个完全图的生成树的简单易行的方法。
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