Mean velocity (Vm) in vertebral arteries(VA) and basilar arteries(BA) were measured using transcranial doppler(TCD).是什么意思_Mean velocity (Vm) in vertebral arteries(VA) and basilar arteries(BA) were measured using transcranial doppler(TCD).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句