国内我们首先以柠檬酸为转晶剂制备出医用外科级硫酸钙，实验证明该材料生物相容性好、体内能够降解吸收。
We first prepared surgical-grade α - calcium sulfate with citric acid in our country which has good biocompatibility and can be absorbed along with its degradation .
柠檬晶