| 1. | O rings . dimensional checking and classification of defects
O形圈.缺陷的尺寸检查和分类 |
| 2. | O - rings . fluorocarbon rubber 64c8 . precision class a . quality class 3
O形圈.碳氟橡胶.精度等级.质量等级3 |
| 3. | O - rings . ethylene - propylene rubber 41b8 . precision class a . performance class 3
O形圈.乙丙橡胶.精度等级.性能等级 |
| 4. | O - rings . butadiene acrylonitrile rubber 20a8 . precision class a . quality class 3
O形圈.丁晴橡胶.精度等级.质量等级 |
| 5. | O - rings . butadiene acrylonitrile rubber 21a7 . precision class a . quality class 3
O形圈.丁晴橡胶.精度等级.质量等级 |
| 6. | Some bullet - nose connections have soft tips or o - rings on the nipples
一些弹头接头具有一个软头或在管接口上有o形圈。 |
| 7. | O - rings . butadiene acrylonitrile rubber 20b8 . precision class a . performance class 3
O形圈.丁晴橡胶.精度等级.性能等级 |
| 8. | The most common sealing ring of bit bearing is single o - ring , which is made of rubber
最常用的钻头轴承密封圈是单个o形圈，主要以丁腈橡胶制作。 |
| 9. | Both units are sealed by an o - ring and thereby the insert is decoupled from vibrations
两个单元都是用o形圈密封，这样就可以减少振动对插入头的影响。 |
| 10. | Hollow metal o - ring is inhibited to contact active chemical agents , in order to prevent corrosion
2金属空心o形圈不允许与活性化学剂接触，以防被腐蚀。 |
