Scientists hae long known that cartilage gets its strength from interlocking millimetre-long collagen fibres that work in a similar way to the load-bearing steel rods in reinforced concrete.

• 很久以前科学家就了解软骨通过将毫米长的胶原纤维进行交联来获得强度，这种方式类似于加强型混凝土中负重的钢柱。