2) prop resistance
支柱阻力
3) downgoing resistance of plunger
柱塞下行阻力
1.
The comparison between measured and calculated values generally shows the same trend and the downgoing resistance of plunger increases with flow rate in both cases.
为建立预测抽油杆杆管偏磨位置的数学模型,通过量纲分析法及现场数据回归得出柱塞下行阻力的表达式,并与实验值进行了比较。
4) piston reaction spring
柱塞泵反作用[阻力]弹簧
5) string friction
管柱摩阻
1.
Calculation of pipe string friction during fracturing operation in Chuanxi area;
川西地区压裂施工过程中管柱摩阻计算
6) impedance cylinder
阻抗圆柱
1.
The electromagnetic scattering mechanism of a two-dimensional impedance cylinder is investigated and the equivalent formats between a perfectly conducting cylinder, a dielectric coated cylinder and a impedance cylinder are given.
本文分析了二维阻抗圆柱的电磁散射机理,讨论了金属圆柱、有耗涂层圆柱与阻抗圆柱的等效特性,获得了它们的散射场一致性绕射理论(UTD)解。
补充资料:肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄,分支短而管径大,故肺动脉的可扩性较大,对血流的阻力很小,仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等,故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条