Conclusion Gentamicin-PMMA bead chain is an important method in the treatment and prevention of bone and joint infections.
结论庆大霉素珠链是治疗及预防骨和关节感染的重要方法。
Objective To observe the clinical curative effect of gentamicin-PMMA bead chains in bone and joint infections.
目的观察庆大霉素PMMA珠链治疗骨和关节感染的临床疗效。
Methods To take periodic outpatient follow-up and observe the curative effect of 11 cases of bone and joint infections with application of gentamicin-PMMA bead chains made in Germany since 1995.
方法对从1995年以来应用德国生产的庆大霉素PM MA珠链治疗的11例骨和关节感染的病例，定期门诊随访，观察疗效。
But the microhardness of the weld bead after heat treatment reduces by 60 HV, compared with origin welded joint.
与原始接头显微硬度值相比，经历高温热处理后接头的显微硬度降低约60HV左右。
The microhardness of the weld bead reduces from the center of joint to base metal before and after heat treatment, and the microhardness of HAZ is minimum.
热处理前后焊缝截面显微硬度均自焊缝中心向热影响区逐渐降低，热影响区显微硬度低于母材。
The microhardness of the weld bead reduces from the center of joint to base metal before and after heat treatment, and the microhardness of HAZ is minimum.
热处理前后焊缝截面显微硬度均自焊缝中心向热影响区逐渐降低，热影响区显微硬度低于母材。
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