双胎一产和二产之间窒息的发生率无明显差异；
There are no significance of difference of asphyxia rate between first delivery and second delivery of the twins.
结果：观察组手术产率、产后出血率低、第一产程活跃期短、满意度高。
Results: Operation rates and postpartum hemorrhage rates of the experiment group is lower, with shorter first stage active phase and higher satisfaction.
他还表示，在养殖骆驼方面需要加大努力。骆驼是干旱时唯一产奶的动物。
He also says more efforts need to be put into raising camels. Camels are often the only animals that produce milk during a drought.
马里是非洲第一产棉大国，土地和水利资源十分丰富，有“西非粮仓”之称。
As the largest cotton maker of Africa, Mali enjoys a wealth of abundant land and water resources and hence the title "Barn of Western Africa".
服务业地税收入超过一产、二产之和，服务业从业人员占全社会从业人员的四成。 。
The tax of tertiary has exceeded the sum of the other two industries and the employment of the industry accounts for 40% of total social employment.
科学家们以为另外一产大灭绝正在发生，不管对付陆地仍是海洋而言，此次大灭绝的范围都要超越以往。
Scientists say that another mass extinction is now underway, with extinction rates an order of magnitude higher than normal, both on land and at sea.
鸟类学家们研究发现，在整个繁殖季节的过程中，雀蛋一产下就弃巢而去的行为提高了这些遗弃巢穴的山雀的产雏量。
They found that, over the course of the breeding season, deserting the nest once eggs had been laid boosted the number of descendants produced by the bird that fled.
鸟类学家们研究发现，在整个繁殖季节的过程中，雀蛋一产下就弃巢而去的行为提高了这些遗弃巢穴的山雀的产雏量。
They found that, over the course of the breeding season, deserting the nest once eggs had been laid boosted the number of descendants produced by the bird that fled.
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