force of labor

Its cause was the resistance between head and pelvis and abnormal force of labor.

7%,发病原因为头盘不称形成的阻力及产力异常.

We investigated the delivery manner of 44 twin pregnancies between 1990 and 1995. The result showed that dystocia and operative delivery for twin pregnancy occur more often apparently than mono-cyesis because of the abnormal fetal position, the abnormality of force of labor and pregnancy complication.

本文对我院1990～1995年间44例双胎妊娠的分娩方式进行了分析。指出双胎妊娠由于胎位异常、产力异常及妊娠并发症多等因素，难产及手术产率均较单胎明显增高。

The result of the test group in force of labor, process of labor are better than the control group.

结果实验组的产力及产程均优于对照组。

Acupuncture is indicated in the protracted labor due to the abnormality of force of labor from the uterine inertia.

子宫收缩乏力所致产力异常引起的滞产，是针灸临床治疗的适应症。