硬蛋白

例句：

1. 1. The researchers found that the hard proteinin the bone could be used as amarker for disease progression.
   研究人员发现，骨骼中的硬蛋白可以作为疾病进展的标志。
2. 2. Thehard protein in the bone is crucial formaintaining bone health.
   骨骼中的硬蛋白对于保持骨健康至关重要。
3. 3. The hard protein in thebone helps to strengthen and protect the structureof the bone.
   骨骼中的硬蛋白有助于加强和保护骨骼的结构。