growth dynamic of tree rings 年轮生长动态
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N → another name for annual ring
In the 1980's, however, Bakker's contention began to be questioned, as a number of scientists found growth rings in the bones of various dinosaurs that are much like those in modern reptiles.
然而，到了20世纪80年代，巴克的论点开始受到质疑，因为许多科学家在各种恐龙的骨骼中发现了与现代爬行动物相似的生长环。
This variation shows up in the trees growth rings.
这种变化表现在树木的年轮中。
Bone growth in reptiles is periodic in nature, producing a series of concentric rings in the bone, not unlike the growth rings of a tree.
爬行动物的骨骼生长在本质上是周期性的，在骨头上产生一系列的同心圆，就像树木的年轮一样。
The scientists say deep-sea bamboo corals produce growth rings similar to those found on trees.
VOA: special.2010.08.10
The skeletons have growth rings that represent ocean water conditions at the time.
VOA: special.2009.05.12
Rainfall has a direct link to the growth and width of rings on some kinds of trees.
VOA: special.2010.05.25
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