Doixn.杜瓦(在法国；西经 0º48' 北纬 46º24')dov.做；干n.注意事项；<非正式>聚会；<古>事情doppler-ultrasonic彩超Do not expect me .不要期待我来。Do not smoke here.不要在这里吸烟。Doppler half-width多普勒半宽度(光谱线)Doppler sonar system多普勒声纳系统Doppler's ultrasouudDoppler flow inaging多普勒血流Do you take out?Do you enjoy it?doubling-over test折叠试验