边界层风廓线仪应用中存在的若干问题_stmopen 关键词】: 边界层风廓线仪 多普勒频谱 地物杂波 水平风 [gap=552]Keywords】: Boundary wind profiler,Doppler spectrum,Ground clutter,Horizontal wind
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... 多普勒频率信号 Doppler frequency signal; 多普勒频谱 Doppler frequency spectrum; 多普勒频移 Doppler frequency shift; Doppler shift; ...
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本文还讨论了多囊肾血流多普勒频谱变化的机制。
Mechanism of Doppler blood flow ultrasonic spectrum of the polycystic kidney was discussed.
目的探讨多普勒频谱在下肢动脉疾病检查中的价值。
Objective To evaluate the value of Doppler spectra in detecting arterial diseases in the lower limbs.
二尖瓣返流连续多普勒频谱为2束返流共同形成的叠加频谱；
The frequency spectrum of continuous wave Doppler composed of two merged regurgitant jets.
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