(Highly realistic teaching aids): Designed according to human body proportions, using simulation materials, including the lower body of pregnant women, fetus and inflatable bags, the teaching experience is real. ? (Full process training): Used for delivery teaching, helping students, pregnant women and their families to master prenatal examinations, midwifery and other skills, and improve emergency response capabilities. ? (Dystocia simulation system): Through the inflatable bag to control uterine contractions, change fetal positions, restore normal and abnormal delivery scenes, and facilitate understanding of dystocia treatment. ? (Multi-scenario application): Applicable to institutions, colleges and universities, etc., can be used as training and assessment teaching aids, and can also help pregnant women and families understand delivery. ? (Safe teaching): Replace theoretical teaching with simulated practical operations to reduce the real risk of delivery and improve the proficiency of operations.?