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。
Calcium acid phosphate as bioactive material has bone conductibility, and has been commonly used in substitution and padding of clinical bone defect.
骨组织修复材料作为骨缺损的替换材料，具有功能上的特殊性——应用于负载的力学性能、生物相容性、骨传导性及骨诱导性。
Materials for defect replacement and repairing process special functional requirements for mechanical properties for bone-bearing, biocompatibility, osteoconductivity and osteoinductivity.
一耳正常、另耳为传导性聋，测试患耳骨导时不需掩蔽；
When one ear normal and the other is the conductive impairment, need no masking when testing the diseased ear.
一耳正常、另耳为传导性聋，测试患耳骨导时不需掩蔽；
When one ear normal and the other is the conductive impairment, need no masking when testing the diseased ear.
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