instantaneous particle velocity

基本解释

"We've now observed the instantaneous velocity of a Brownian particle, " says Raizen.
Raizen说：”我们现在已经观察了布朗粒子的瞬时速度。
In this paper recently developed Particle Image Velocimetry(PIV)was used for instantaneous measurement of the full field velocity distribution in four stroke engine.
本文将粒子图像测速技术用于研究内燃机缸内流场，可以测定某一瞬时的缸内流场全场流速分布。
Particle-image Velocimetry (PIV) system was used to measure the instantaneous streamwise velocity and longitudinal velocity in turbulent boundary layer on a flat plate.
应用粒子图像测速（PIV）系统对平板湍流边界层内流向和法向的瞬时速度进行了测量。
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