4 ms·
Acoustic Doppler velocimetry: http://en.wikipedia.org/wiki/Acoustic_Doppler_velocimetry http://en.wikipedia.org/wiki/Acoustic_Doppler_velocimetry
by jonsen 15y ago
Acoustic Doppler velocimetry:
http://en.wikipedia.org/wiki/Acoustic_Doppler_velocimetry http://en.wikipedia.org/wiki/Acoustic_Doppler_velocimetry