contraction of the uterus 宫缩
contraction ring of uterus 班都氏环
contraction effect of uterus 缩宫作用
poor contraction of the uterus 子宫缩复不良
sensitivity of uterus contraction 宫缩敏感性
contraction of uterus
子宫收缩
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This suggests that if the uterus was "rested" the body might overcome some of the contraction problems caused by excess acid.
BBC: Making childbirth safer and easier for women
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