This paper analyzes the selection of the standard rings, classification of ball vibration and the influence on bearing vibration through test.
就标准套圈的选择、钢球测振分档范围和对测振值的影响因素等方面进行了较为系统的试验分析。
One bearing a person's name and other information, used for purposes of identification or classification.
印有一个人的姓名及他的其它情况的纸片，用作身份证明或分类。
This paper mainly discusses the classification of sedimentary basins in accordance with the structure of oil and gas - bearing basins.
该文主要从沉积盆地的结构上进行盆地分类，共分为三类八型。
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