At the exhaust gas dilution condition, the burning duration is extended and the flame speed drops faster at high initial pressure than at low one.
在废气稀释情况下，燃烧时间延长，在高初始燃烧压力时，火焰传播速度下降更明显。
2
Results There were significant differences in blood loss volume, duration of operation, hospital stay and anal exhaust time between laparoscopic surgery group and laparotomy group(P<0.05).