This light blue section is data from tree ring observations.

浅蓝色的部分是树观测的数据。

Fry then decided to count the tree's rings to learn its age.

然后弗莱决定数树的来了解它的龄。

There they form regular white bands amid the sediments, much like age rings in trees.

它们在沉积物中形成规则的白色带，很像树的。

Researchers often look at chemicals stored in them when trying to reconstruct past environments.

在试图去的环境时，研究人员经常会从中所含的化学物质入手。

We can't read the rings to know how old these aspens are.

我们无法通读取来得知这些颤杨的龄。

Thin rings show years when there wasn't.

而这些细的则显示水分不足。

Scientists can then read these records, similar to reading the rings on a tree.

然后，科学家就可以读取这些记录，就像读取树上的一样。

Around the Haversian canals, there are concentric lamellae, which look a bit like tree rings.

在哈弗斯管周围有许多同心薄片，看起来有点像树的。

Tree rings can show age and give information about the environment over time.

树可以显示树龄，并提供随时间变化的环境信息。

We see it in the tree rings of the ancient redwoods.

我们可以在古老的红杉树的上看到火。

We know this because shark vertebrae show rings of their growth, just like tree rings.

我们知道这一点，是根据鲨鱼的脊椎骨显示出它们生长的环，就像树的一样。

Counting the rings of a single trunk will only account for up to 200 years or so, as Pando is in a constant cycle of growth, death, and renewal.

计算单一树干的只能算到 200 左右；而同时，潘多处在生长、死亡，和更新的持续循环中。

By looking at nitrogen in individual tree rings—those yearly layers you can see if you cut a tree in half — the researchers were able to show how important salmon are to the trees.

如果把一棵树砍成两半，你可以看到，研究每棵树中的氮含量，研究人员就能证明鲑鱼对树有多要。

It's a bit like looking at tree rings, each layer tells a different a story and a different history about what the climate and the environment was doing at the time.

这有点像看树的，每一层都讲述了一个不同的故事和一段关于当时气候和环境变化的不同历史。

The Celts, who lived in what is now Ireland, Scotland, the UK, and parts of Northern Europe, based their calendar on the wheel of a year.

凯尔特人生活在在的爱尔兰、苏格兰、英国和北欧部分地区，他们的日历是一个。

As teeth form, they accumulate microscopic layers of enamel -- like how trees add new growth rings -- and periods of high stress, including trauma, are recorded by disruptions in the layers.

牙齿形成时会累积一层层的釉质，就像树增加；而压力大的时期，包括受到创伤，则会造成釉质层中断而留下纪录。

" They were hoping to get some mud, which they could use to date how the environment had changed over millions of years – like the rings on a tree, " says Griffiths.

“他们希望得到一些泥浆，他们可以用它们来确定环境在数百万里是如何变化的，就像树的一样。”

When taken up by trees, it left a lasting signature in tree rings—giving the scientists a key to pinpoint the year 993 in the three wood samples using radiocarbon dating.

被树接受后，放射性碳会在上留下持久的特征，而这给了科学家们一把密匙，使其利用放射性碳定法确定三份树样本的份是993。

Look inside one and you'll see that they're composed of tubes inside of tubes, so that a cross-section of an osteon looks like the rings of a tree trunk.

看看里面，你会看到它们是由管子里的管子组成的，所以骨头的横截面看起来像树干的。

When the tree is cut down, you can see a series of rings in the wood extending from the centre of the trunk to the bark.

当我们把橡砍倒在地的时候就能看见从树干中心向树皮扩散的许多。