| 1. | Specification for outside diameters and thicknesses of tubing
管外径和壁厚规范 |
| 2. | Not smaller than 810 times of protective tubes outer diameter
一般应不小于其保护管外径的8 - 10倍。 |
| 3. | Silica tube outer diameter controller
硅管外径控制器 |
| 4. | A . for annealed drawn tubes the ratio of outer diameter to thickness is no more than 15
退火态拉制管外径与壁厚之比不小于15者。 |
| 5. | B . for hard and half hard drawn tubes the ratio of outer diameter to wall thickness is no more than 25
硬态和半硬态拉制管外径与壁厚之比不小于25者。 |
| 6. | Fluid power systems and components - connectors and associated components - outside diameters of tubes and inside diameters of hoses
液压气动系统用硬管外径和软管内径 |
| 7. | Fluid power systems and components - connectors and associated components - nominal outside diameters of tubes and nominal inside diameters of hoses
液压气动系统用硬管外径和软管内径 |
| 8. | The relation between the diameter and wall thickness of transparent pipe is drawn from lots of experiment data . with recursive analysis , the error of wall thickness measurement is compensated
本文在理论分析的基础上，通过大量的实验，找到了玻管外径和壁厚之间的关系，并用回归分析法对实验结果进行处理，从而对壁厚的测量误差进行补偿，使测量系统的精度满足使用要求。 |
| 9. | In order to probe into the anti - friction mechanism and effectiveness of turbulent zone of flexible pipe , extensometer with high accuracy and high - frequency response characteristics is used to study the frequency variation feature of flexible pipe ' s outer diameter with reynolds number
摘要为探讨柔性管的紊流区域减阻效果的产生机理，采用高精度高频率响应特性的应变仪对柔性管外径随雷诺数的频率变化特性进行了研究。 |
| 10. | Abstract : in the light of the problem of multiple variables restrain in the design of pipe heat exchanger , it is proposed taking three variables , the pipe length , ratio between the table flap space and the shell outer diameter , and ratio between the pipe space and the pipe outer diameter , as optimization criterion
文摘:针对管式换热器设计过程中几何关系的多自变量约束难题，提出了以管长、折流板间距与壳外径之比、管间距与管外径之比三个设计变量作为优化判据。 |
