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本文论述根据激光多普勒流速仪原理来测量球形粒子大小和速度的光学仪器。文中还介绍了在空气泡水洞中对直径为5～150um 空气泡的测量。
This article discusses optical instruments that measure the size and velocity of spherical particles based on the principle of a laser Doppler flowmeter. The paper also introduces the measurement of air bubbles with a diameter of 5 ~ 150um in air bubble tunnels.