The horizontal velocity at the outermost edge and thickness of bubbly flow are measured by laser Doppler velocity technique.
利用激光测速技术测量了平板水平放置时气泡流最外缘处的水平速度及厚度。
To meet the seism detections require of high accuracy, high resolving power, the measurement technique of Laser Doppler and detection technique of faint signal are further researched.
为了满足地震勘探高精度、高分辨力的需要，进一步研究了多普勒测量技术和弱信号检测技术。
Feasibility is discussed that a multi-longitudinal mode laser is employed as the detection light source of the double-edge technique for Doppler lidar wind measurement.
讨论采用多纵模激光器作探测光源用于双边缘多普勒激光雷达测风的可行性。
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