如何降低假体返修率、提高膝关节置换术后的疗效是亟待解决的主要问题。
How to lower the revision rate as well as increase the effect of prostheses after the knee replacement should be solved urgently.
目的探讨心脏瓣膜置换术后妊娠期抗凝治疗的监护，提高心脏手术后妇女的优生率。
Objective To explore nursing care of anti-coagulation treatment during gestation after hear valve replacement and improve eugenic rate after heart surgery.
改进页面置换算法，可以降低页面失败率，从而有效地提高系统性能。
Improving virtual memory page replacement can reduce page fault rate, and therefore improve the performance of the system.
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