The value of umbilical blood stream examination and descending test of fetal head on antenatal diagnosis of cord around neck and perinatal prognosis是什么意思_The value of umbilical blood stream examination and descending test of fetal head on antenatal diagnosis of cord around neck and perinatal prognosis在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句