The method avoids that hole of taking pressure is blocked by used average-velocity tube to measure unpurged one phase fluid in the big pipe.
避免大口径管道采用均速管测量非洁净流体时，取压孔被堵塞问题。
An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation.
速调管一种用速度调节的方法放大或产生超高频率的电子管。
Stability of regulated pressure is maintained under varying flow conditions through the use of an aspirator tube which adjusts the supply valve in accordance with the flow velocity.
受管制的压力下保持稳定是通过不同的抽气管，可以调整与流速按照使用流量阀供应条件。
A research was conducted of the velocity field of the designed cubic-curve tube type hydrocyclones.
对设计的三次曲线管型水力旋流器的速度场进行研究。
On the basis of experiment of two-phase pressure drop, for air-water flow through horizontal tube, the effect of mass velocity on the two-phase pressure drop is analyzed.
在对空气-水在水平放置的圆管内流动时的两相压降实验的基础上，分析质量流速对两相压降的影响。
The Model AS-2 is designed to check velocity and direction of air flow continuously with a smoke tube (No. 301) which reacts with vapour in the air and generates white smoke.
该型号AS - 2的目的是检查速度和方向的空气流动的烟管（301）的反应与空气中的蒸汽并产生白烟不断。
The simulation result shows that the selection of axial feed velocity has a strong influence on hydroforming tri-branch tube.
结果表明，轴向进给速度的选取对内高压成形三通管具有重要影响。
We also analyse the critical velocity, at which elastic deformation translate to plastic deformation when the bullet impact the tube.
同时也分析了冲头对圆管碰撞时，导致圆管由弹性变形向塑性变形转化学的临界速度值。
It is proved that the fluid force acting on the tube is closely related to the displacement, velocity and acceleration of the tube.
证明了作用在管上的流体力与管子运动时的位移、速度、加速度密切相关。
We think this is an important break-through in testing lower flow velocity in tiny tube .
这是小管径、低流速系统测量方法上的一个突破。
The results indicate that a sphere near the entrance which has a uniform entrance velocity profile will suffer larger drag than that in an infinite tube.
结果表明，当圆球在入口处运动时会遭受到较无穷圆管内为大的阻力。
Set up was a momentum analysis model of the drift velocity in stagnant liquid of long bubbles in an annular tube.
建立圆管内滞止液体中长气泡漂移速度动量分析模型。
The fouling problem is the most serious for the shell - tube heat exchangers of low flowing velocity, whose number is the largest.
数量最多的低流速列管式传热设备的污垢问题最严重。
The first design rule assume that all the fluid was flowing at the maximum velocity of the center of a tube.
其一，假设所有流体都以管道中心的最大速度流动，并以之作为设计保持管长度的依据。
The diameter and the number density of microbubbles are controlled by changing the difference in pressure inside and outside of tube and the velocity of liqulid cross-flow outside of tube.
微气泡的大小和数量通过改变管内外的压差和管外剪切流速度来控制。
The feasibility of hydroforming tri-branch tube is proved by FEM. The corresponding thickness and strain distribution of different axial feed velocity on the simulation is analyzed.
利用有限元法证实了内高压成形三通管的可行性，给出了不同轴向进给速度下零件的壁厚及应变分布，并就轴向进给速度对成形的影响进行了分析。
Certain concentration of sucrose solution is helpful to growth of pollen tube; both 10% and 20% sucrose solutions can significantly increase elongation velocity of pollen tube.
一定浓度的蔗糖溶液有助于花粉管的生长，10%、20%蔗糖浓度均能显著提高花粉管伸长速度。
When the maximum velocity of an oscillated flow in the collapsible tube exceeds the so-called critical velocity, the tube will become unstable and oscillate with displacement.
可坍陷管中，当管流速度幅值超过临界速度时，会产生失稳和位移振荡。
The distribution of time-averaged axial velocity in the outlet tube was very different from that in the separation space.
排气管内轴向速度分布与分离空间内的分布形态迥异。
The forces acting on the departing bubble are also analysed. and the formulas for calculating the relative velocity and the velocity with which the bubble moves to the tube axis are obtained.
继而分析了在边界层中脱离壁面的汽泡上的作用力，导出了汽泡运动相对速度的计算公式及汽泡走向管子轴心的速度的计算公式。
But this effect of the main flow to the flow inside the hot jet tube disappears after the velocity ratio become larger than 0 05.
在射流管内，低流速比时存在有紊动区，当流速比大于0 0 5以后，射流管内温度已不受主流的影响。
The effects on solids holdup of heat exchanger tube, bed height, static pressure drop and average solids holdup of inlet chamber by superficial velocity were studied in different main distributors.
在不同结构形式的主分布器条件下，研究了表观液速对换热管中固含率、下管箱内床层高度、静压降及平均固含率的影响。
In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube.
本文讨论了轴对称磁力线管中太阳风从亚声速和亚阿尔文速度加速到超声速和超阿尔文速度的过程。
This paper, taking sound velocity limit of long distance separate heat tube as main project, reaches two important conclusions through ample theoretical analysis and experimental study.
本文以长尺分离式热管的声速极限为主要研究内容，通过充分的理论分析和实验研究，得出了两个重要结论。
We normally use the punch or hydraulic machine to expand the steel tube, but since the impetus and velocity is difficult to control, the cracking rate of expanding the steel tube reaches to over 10%.
钢管扩管通常采用冲床或液压机来加工，但由于冲力和速度难以控制，扩管破裂率达10%以上。
Through industrial testing of tube panel of superheater, the flushing flow velocity was determined, with difficult problems of superheater claming of operating boiler solved.
经过热器管排的工业试验，确定了清洗冲通流速，解决了运行炉过热器清洗的技术难题。
Then it is used to solve the flow of PAM solution in a circular tube. The velocity and stress distributions obtained can be used for the three dimension numerical simulation in the future.
然后用拟谱法求解PAM水溶液在圆管中流动，得到速度分布、应力分布，为三维模拟作准备。
Velocity required in the digital tube display.
速度值要求在数码管上显示出来。
The tube inlet throttle has great influence on the time space distributions of the gas velocity and pressure.
身管入口节流对燃气流速和压力的时空分布产生重要影响。
The tube inlet throttle has great influence on the time space distributions of the gas velocity and pressure.
身管入口节流对燃气流速和压力的时空分布产生重要影响。
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