To distribute stress uniformly, trees add wood at the heaviest load points. Bones remove material from areas where it isn't needed to lighten skeletal frameworks.
为了使压力能够均匀分布，树会在承重最多的位置增加材质；而骨骼则会从那些不必要的位置去掉多余的物质，以此来减轻骨骼框架的重量。
Their skeletal structure is extremely flexible, as it is made of cartilaginous material rather than hard bone.
其骨骼构造非常柔韧，因为他们没有硬骨，只有软骨。
BACKGROUND: Carbonated hydroxyapatite cement is a new type material for skeletal repair and hydroxyapatites have been applied in the clinical treatment of skeletal defect.
背景：碳酸化羟基磷灰石骨水泥是一种新型的骨修复材料，已应用在骨缺损临床治疗中。
The material is a lightweight flexible foam composed of a skeletal matrix of tiny interconnecting strands which act as a three dimensional fire screen.
网状聚氨酯泡沫是一种轻质、柔性材料，它由相互连接的经络构成了空间“骨架”结构，这种结构实际上是一种三维的防火屏蔽。
The material is a lightweight flexible foam composed of a skeletal matrix of tiny interconnecting strands which act as a three dimensional fire screen.
网状聚氨酯泡沫是一种轻质、柔性材料，它由相互连接的经络构成了空间“骨架”结构，这种结构实际上是一种三维的防火屏蔽。
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