钙化

例句：

1. 1. The patient's bone was severely affected by the disease.
   患者的骨骼严重受到疾病的影响。
2. 2. The process of calcium carbonate formation is known as precipitation.
   形成碳酸钙的过程被称为沉淀。
3. 3. The bones in the human body are constantly undergoing calcification.
   人体骨骼不断地发生钙化。