The wake of a hovering rufous hummingbird. Yellow vectors show air velocity, revealed by particle image velocimetry.
棕煌蜂鸟悬停时引发的尾流。黄色的矢量位点是通过粒子图像测速技术显现的气流速度。
Yellow vectors show air velocity, revealed by particle image velocimetry.
黄色的矢量位点是通过粒子图像测速技术显现的气流速度。
A kind of method based on binocular vision for imaging velocity measurement of particle floating in the air or liquid is put forward.
针对漂浮在空气中或者液体中的粒子的速度测量，提出了一种基于双目视觉的测量方法。
Aiming at rotating cone feeders used in annular spouted beds, the influence of spouting air velocity and the amount of hold-ups on particle mixing has been investigated.
针对环形喷动床采用旋转锥播料器对环形空间给料的方法，研究喷动风速和床上物料量对颗粒混合规律的影响。
The effects of stirred velocity, chlorine flow rate, air auxiliary flow rate, solids loading, mean particle diameter and reaction temperature on global process rate are investigated and analyzed.
考察了搅拌速度、氯气流量、辅助空气流量、固体联二脲浓度、粒度及反应温度对过程速率的影响。 分析了影响过程速率的主要因素。
The results show: external diffusion is control process for mass transfer, and increasing air velocity and decreasing particle diameter are effective measures to decrease mass transfer resistance.
研究结果表明：外扩散过程是传质的控制步骤，增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施。
The results show: external diffusion is the main resistance for mass transfer, and increasing air velocity and decreasing particle diameter are effective measures to decrease mass transfer resistance.
研究结果表明，外扩散过程是传质的主要阻力，增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施。
The experimental results indicate that the critical air velocity increases with the increase of the particle size of arenaceous quartz.
结果表明：临界流化速度随着粒度的增大而增大；
Meanwhile, the change of the bed height does not affect the critical air velocity when the particle size of arenaceous quartz is fixed.
而在粒度一定的情况下，床层高度的变化不影响临界流化速度值。
Meanwhile, the change of the bed height does not affect the critical air velocity when the particle size of arenaceous quartz is fixed.
而在粒度一定的情况下，床层高度的变化不影响临界流化速度值。
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