Particle Image Velocimetry(PIV) is a non-disturbed instantaneous whole-field velocimetric technique,which was used in fluid dynamics research widely.是什么意思_Particle Image Velocimetry(PIV) is a non-disturbed instantaneous whole-field velocimetric technique,which was used in fluid dynamics research widely.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句