结论雌激素和孕激素对妊娠期盆底结构和功能均起到保护作用。
Conclusion Both estrogen and progesterone may protect the structure and function of pelvic floor in pregnant primiparas.
本实用新型一种洗衣机，主要涉及洗衣机盆形波轮桶底结构的改进。
The utility model relates to a washing machine, particularly the improved structure of a drum bottom of a basin-shaped impeller of a washing machine.
本实用新型一种洗衣机，主要涉及洗衣机盆形波轮桶底结构的改进。
The utility model relates to a washing machine, particularly the improved structure of a drum bottom of a basin-shaped impeller of a washing machine.
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