... substitution atom 替代原子 substitution defect 替代缺陷 substitution imperfetion 替代缺陷 ...
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defect substitution material 缺损替代材料
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Calcium acid phosphate as bioactive material has bone conductibility, and has been commonly used in substitution and padding of clinical bone defect.
磷酸钙盐作为生物活性材料具有骨传导性，已广泛应用于临床骨缺损的替代和填充。
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