The error analysis of the system shows that the Brownian motion of tracing particles plays a significant role in the accuracy of velocity measurements.
该系统具有较高的分辨率和测量精度，系统测量误差主要来源于示踪颗粒的布朗运动。
Brownian motion the random motion of microscopic particles due to their continuous bombardment by the much smaller and invisible molecules in the surrounding liquid or gas.
显微镜下可见的颗粒的随机运动，是由于在液体或气体环境下许多小而不可见的分子连续碰撞产生的。
Brownian motion the random motion of microscopic particles due to their continuous bombardment by the much smaller and invisible molecules in the surrounding liquid or gas.
显微镜下可见的颗粒的随机运动，是由于在液体或气体环境下许多小而不可见的分子连续碰撞产生的。
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