Medical collagen membrane of gtr Combination Cartilage defects

• 胶原膜

Medical collagen membrane of gtr Combination Cartilage defects的用法和样例：

例句

1. Collagen fibers appear in the wound.
   在伤口中出现了胶原纤维。
2. Skin should contain elastin as well as collagen.
   应包含皮肤弹性，以及胶原蛋白。