One bone was a piece of rib from a cow-sized mammal; the other, a leg bone fragment from a mammal the size of a goat.
一根骨头是来自牛一般大小的哺乳动物的肋骨；另一根是来自山羊一般大小的哺乳动物的腿骨碎片。
Between this and the lower leg bone is a natural recess known as the sinus tarsi, which allows ankle flexibility.
在这块骨头和小腿骨之间的是一个天然的凹槽，被称为“跗骨窦”，它决定了脚踝的灵活性。
Third, scientists performed a test on the dinosaur leg bone that showed that it contained collagen.
第三，科学家的测试发现这个恐龙腿骨化石中还有胶原蛋白。
Method: leg medial skin flap cross transposition was used for repairing contra-lateral leg bone exposure.
方法：应用小腿内侧皮瓣交叉移位修复对侧小腿骨外露。
Conclusion: leg medial skin flap cross transposition is a very effective and safe method for repairing contra-later - al leg bone exposure.
结论：小腿内侧皮瓣交叉移位修复对侧小腿骨外露是安全有效的方法。
First, the breaking of the fossilized leg bone revealed many small branching channels inside, which probably correspond to hollows in the bones where blood vessels were once located.
首先，打开腿骨化石之后，科学家发现了内部有一些管状分支，这些管状分支可能是骨内血管存在的地方。
First, the breaking of the fossilized leg bone revealed many small branching channels inside, which probably correspond to hollows in the bones where blood vessels were once located.
首先，打开腿骨化石之后，科学家发现了内部有一些管状分支，这些管状分支可能是骨内血管存在的地方。
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