钢筋混凝土结构是楼房、桥梁最坚固的建筑结构,从力学观点看骨骼有胶原纤维为网架,矿盐磷灰石(钙)沉积后,恰如钢筋和混凝土组成的建筑结构,坚强有力,并且具有代谢和修复重建等功能。骨由骨矿盐(钙、磷)、胶原蛋白、水、细胞、脂肪等成分组成。骨的质量(骨质密度)决定了骨的强度 The reinforced concrete structure is the most sturdy building structure of the building and the bridge. From the mechanics point of view, the collagen in the skeleton is a grid. After the deposit of the mineral salt apatite (calcium), just as the building structure composed of the steel bar and the concrete is strong and powerful, Metabolism and repair and reconstruction functions. Bone by bone mineral salt (calcium, phosphorus), collagen, water, cells, fat and other ingredients. The quality of the bone (bone density) determines the strength of the bone