Objective To detect the S/D value of fetal umbilical artery blood flow (FUABF) so that to monitor the perinatal stage.是什么意思_Objective To detect the S/D value of fetal umbilical artery blood flow (FUABF) so that to monitor the perinatal stage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句