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。
The simplest framing system supports the dead weight of the mold and concentrates it on a few load points.
最简单的支架系统将承受模具的静载荷，且将这些载荷集中在一些载荷点上。
The simplest framing system supports the dead weight of the mold and concentrates it on a few load points.
最简单的支架系统将承受模具的静载荷，且将这些载荷集中在一些载荷点上。
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