首先介绍了GPRS的技术特点，然后分析了系统的总体结构，再分别从系统的硬件设计和软件设计两方面介绍了该系统的具体实现方法。
Firstly describes features of GPRS technology, secondly analyzes the total structure of this system, finally expounds the realization of the system from hard design and software design.
使用重复测量变异的单因子分析和Bonferroni统计学测试，我们将每个结构的椎间盘运动再分布与完整运动进行了比较。
Using repeated-measures single factor analysis of variance and Bonferroni statistical tests (P < 0.05), intervertebral motion redistribution of each construct was compared with the intact.
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