| 1. | Pvc standard for safety for schedule 40 and 80 rigid pvc conduit
管壁厚度40和80的硬聚氯乙烯 |
| 2. | Aerospace . tubing . outside diameters and thicknesses . metric dimensions
航空航天.管材.外径和管壁厚度.米制尺寸 |
| 3. | Thickness of pipe
管壁厚度 |
| 4. | Packaging - flexible aluminium tubes - wall thickness determination method ; german version en 12375 : 1998
包装.铝软管.管壁厚度的测定方法 |
| 5. | Aerospace ; tubing ; outside diameters and thicknesses ; metric dimensions ; identical with iso 2964 , edition 1985
航空航天.管材.外径和管壁厚度.米制尺寸.与iso 2964 |
| 6. | The fixed anvil of the tube micrometers has spherical surface . they are suitable for measuring the thickness of tubes
壁厚千分尺固定测砧为球面，适用于测量管壁厚度。 |
| 7. | Depressie symptoms were associated with plaque build - up during the 3 - year study , the authors report , whereas anxiety and anger symptoms seemed to be unrelated
研究人员使用症状评分法评估抑郁、焦虑、愤怒，使用测量颈总动脉管壁厚度的影像学方法评价动脉粥样硬化的程度。颈总动脉位于颈部，其功能是向大脑供氧。 |
| 8. | This method is based on the lightening model by analyzing the parameters affecting the lightening efficiency , such as moore ratio of sodium , inner diameter and thickness of the tube , distance of electrodes , and availing of the experiences accumulated in the convetional design method
分析钠摩尔分数、放电管内径、管壁厚度、极间距等主要参数对其发光效率的影响，并总结传统设计方法所提供的经验，建立放电数学模型。 |
| 9. | Through the computation of the water hammer pressure in steel and pvc pipes with the characteristic line method , the influence of velocity of water , material and wall thickness of the pipes to the magnitude , crecent process and phase length of the water hammer pressure is analyzed
应用特征线法，对钢管及pvc管道中水击进行计算，分析了管道中水流流速及管道材料、管壁厚度对管道中水击压强大小、水击压强的增长过程及其相长的影响。 |
| 10. | This dissertation investigates the influences of internal press and missiles shape on deformation and rupture of a multi - span thin - walled metal tube that struck by a large - mass and slow - speed missile transversely . 103 impact tests were conducted on a thin tube ( d / t = 44 ) either empty or filled with water using a missile ( dm / t = 6 ) with various nose shapes ( flat - nosed , hemisphere - nosed and conical - nosed )
采用三种弹体(平头、半球形和圆锥头，弹体直径与管壁厚度之比d _ m t = 6 )对空管和高压充水薄壁钢管(径厚比d t = 44 )进行了冲击破坏实验，预加工作内压分别为0mpa ， 5mpa ， 10mpa和15mpa 。 |
