spontaneous law自发法spontaneousadj.自发的，自然的，本能的；自然产生的spontaneous phagorytosis[医] 自发吞噬作用spontaneous fibrillation自发原纤化Spontaneous pheamothorax自发性气胸spontaneous hypertension特发性高血压spontaneous mode locking自发模锁定spontaneous seed crystal自生品种spontaneous pneumothorax特发性气胸,自发性气胸spontaneous phagocytosis自发吞噬作用spontaneous emission rate自发辐射率spontaneous light emitter自发光发射器

1. Conclusion Epidural anesthesia procedure can increase the spontaneous delivery rate, reduce the cesarean rate, release the pain in delivery, and improve the perinatal life quality.
   结论实施镇痛分娩提高了自然分娩率，降低了剖宫产率，并缓解了分娩疼痛，提高了产妇围产期的生活质量。