industrial rolling needle 工业滚针
industrial l rolling needle 工业滚针
Cage And Needle Rolling Assembly 无套圈有保持架滚针轴承
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。
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