胎儿心率检测用多普勒探测器的英文

doppler fetus detector

doppler for detection of fetus pulse

• 胎儿:    fetus; foetus; emb ...
• 检测:    check; detection; ...
• 用:    40分钟跑完全程 run the c ...
• 多:    many; much; more
• 普:    general; universal
• 探测器:    finder; detector; ...