1) 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。
2) friction in down stroke
下行阻力
1.
Based on the analysis of the mechanism on the tubing-rod wearing in detail, a novel design of low friction sucker pump has been developed recently which can reduce the rods' friction in down stroke effecti.
为降低杆柱下行阻力,减缓杆管偏磨,延长检泵周期,开发并应用了低磨阻泵。
3) damping plunger
阻尼柱塞
4) piston reaction spring
柱塞泵反作用[阻力]弹簧
5) plunger foot
柱塞下端
6) travel of plunger
柱塞行程
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