Methods Multi-central randomized blind controlled trials were used, and 180 cases were randomly divided into a rolling needle group and a medication group, 90 cases in each group.
方法：采用多中心随机盲法对照试验，180名患者随机分成滚针组和药物组各90例。
The needle roller bearing is a cylindrical roller bearing with thin, long rolling elements.
滚针轴承是拥有薄的，长的滚动体的圆柱滚子轴承。
The rolling contact fatigue performance of ceramic balls with fine compact equal-axis grain and fewer glass phase exceeds that of those with slightness-needle grain and more glass phase.
细小致密的等轴状晶粒、玻璃相少的陶瓷球的滚动接触疲劳性能优于长针状晶粒、玻璃相多的陶瓷球。
About the role players to control movement through the plate, needle plate, shell plate, rolling, etc. transitional realize downstairs.
玩家控制角色左右移动，通过平板，针板，弹板，滚板等的过渡实现下楼。
About the role players to control movement through the plate, needle plate, shell plate, rolling, etc. transitional realize downstairs.
玩家控制角色左右移动，通过平板，针板，弹板，滚板等的过渡实现下楼。
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