1·By looking up the elements in the rings for a given year, scientists can tell what elements were in the air that year.
通过查找某一年年轮中的元素，科学家可以知道那一年空气中的元素是什么。
2·On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
在地球上，人们认为，表明太阳黑子周期最可靠的迹象之一是树木的生长速度，就像树干横截面上可见的年轮一样。
3·In the example above, there are small gaps in the rings.
在上面的示例中，环中存在小的间隙。
4·The poles are to remain in the rings of this ark; they are not to be removed.
这贡要常在柜的环内，不可抽出来。
5·To increase the contact area and permit larger loads to be carried, the balls run in curvilinear grooves in the rings.
为了增加接触面积并承受较大载荷，滚珠在内外环的曲线槽内滚动。
6·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。
7·I found that there were these rings in every specimen except for the smallest.
我发现这些环在所有的标本中都存在，最小的除外。
8·He has seen evidence of these warm dusty rings in infrared radiation picked up by the Spitzer space telescope.
他已经看到了斯皮策太空望远镜在红外波段捕捉到的这类温热尘环的证据。
9·I just read in the newspaper that Lord of the Rings is this year's greatest hit.
我刚在报纸上看到《指环王》是今年最卖座的电影。
10·It's 5:00 in the morning when the alarm rings in my ears.
早上5点，闹钟响了。