单词	直接观测
释义	直接观测 direct observation
随便看	Dopplershift Doppler shift doppler-shift Doppler-Shift Doppler Shift Attenuation Doppler shift attenuation method Doppler-shift, Dopplershift doppler-shifted Doppler shifted constant frequency Doppler-shifted constant frequency doppler shifted frequency doppler-shifted frequency Doppler-shifted frequency Doppler-shifted ultrasound doppler shift effect Doppler shift error Doppler shift frequency doppler shift frequency spectra doppler shift in frequency doppler shift location doppler shift measurement Doppler shift measurement doppler shift method Doppler-shift ocean-current meter doppler shifts