The additional frictional pressure drop for vertical tubes due to its connection with the bend was accounted into the frictional component due to return flow.
回弯压力降除考虑回弯头的局部阻力外，还包括相连直管段受回弯影响而增加的压力降。
Experiments on heat transfer and frictional pressure drop of kerosene of single phase flow in the internally ribbed tube were conducted and compared with those of smooth tube.
对煤油在内螺纹管中的单相紊流传热和摩擦阻力特性进行了实验研究，并将实验结果同煤油在光管中的实验结果作了比较。
To calculate discharge port pressure, this article considers the influence on frictional pressure drop in the gas and liquid two-phase flow between rod and tubing owing to rotation of rods.
在计算排出口压力计算过程中，考虑了由于抽油杆柱旋转引起杆管环空气液两相流摩阻的影响。
With oil, gas, water as working fluids, the experiment studies of frictional pressure drop characteristics of oil gas, gas water two phase flow in vertical helically coiled tubes were carried out.
分别以油气、气水为工质，对立式螺旋管内气液两相流的摩擦阻力特性进行实验研究。
The harder rocks push against each other, the hotter they become; in other words, pressure itself, not only the rocks' properties, affects frictional heating.
岩石相互推挤得越厉害，它们就会变得越热；换句话说，不仅是岩石的性质，压力本身也影响摩擦加热。
Viscosity: viscosity is the crude oil in the flow caused by the internal frictional resistance, crude oil viscosity depends on temperature, pressure, dissolved gas and its chemical composition.
粘度：原油粘度是指原油在流动时所引起的内部摩擦阻力，原油粘度大小取决于温度、压力、溶解气量及其化学组成。
The frictional resistance factor increases with the increase of the flow velocity, decreases with the increase of temperature and its variation law with the pressure is complicated.
摩擦阻力系数随着流速增大而增大，随着温度的升高而减小，而其随着压力的变化特别复杂。
Shearing, pressure, and frictional forces also all play a role in the breakdown of the cutaneous barrier, since they are concentrated over the abnormal bony prominences.
剪切力，压力和摩擦力也都可能有破坏骨突起异常区域皮肤屏障的作用。
The deformation and contact frictional force of elastomer pressure shear break are studied in proportion loading .
对比例加载时弹性体压剪裂缝的变形及接触摩擦力问题进行了研究。
Pressure and the appropriate frictional force is determined.
压力和适当的摩擦力的测定。
It is shown from the analysis of formation mechanism that the pressure gradient force, vertically frictional force and Coriolis force play the leading roles in forming the YSWC.
对黄海暖流形成机理的分析表明，压强梯度力、垂向摩擦力和柯氏力占主要地位。
The test method of pressure loss, flow loss and frictional force loss etc. of the hydraulic pumping units is presented, from which the mechanical efficiency and volumetric efficiency are obtained.
给出了测取液压抽油机系统压力损失、流量损失以及油缸的摩擦力损失等的方法，并由此求出系统的机械效率与容积效率。
Within the ore pass, rock & ore cause different frictional forces that can be divided into 3 type of static pressure and stress.
根据矿岩在溜井内产生摩擦阻力的不同，矿岩对溜井底部静压力可分为3种状态。
According to the flowing conditions of the fluid in rotator, the factors causing the pressure drop due to the frictional and centrifugal forces are analyzed.
根据流体在管道中的流动状况，分析了阻力压降损失和离心压降损失。
According to the flowing conditions of the fluid in rotator, the factors causing the pressure drop due to the frictional and centrifugal forces are analyzed.
根据流体在管道中的流动状况，分析了阻力压降损失和离心压降损失。
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