stillbirths

Considerable heterogeneity in risk factors between antepartum and intrapartum stillbirths is evident.

非常明显,产前和产时死胎的危险因素存在相当大的不一致性.

Porcine parvovirus ( PPV) is the major causative virus in a syndrome of reproductive failure in swine, which includes stillbirths, mummified fetuses, early embryonic death, and infertility.

猪细小病毒（Porcine parvovirus，PPV）是引起猪繁殖障碍综合症的主要病原，可引起死产、木乃伊胎、胚胎的早期死亡及不孕不育等。

Thus, these clever devices are curious stillbirths in our genealogy of automation.

从这个意义上说, 这些机巧的装置其实是自动化谱系上一些奇妙的死产儿.

Research has shown that older women are no more likely than younger women to have stillbirths.

研究表明年纪大的妇女和年轻妇女死产的概率差不多。

health risks could include specific types of cancers , stillbirths and acute radiation syndrome if a full meltdown occurs , experts said .

专家说，如果核反应堆完全熔解，伴随的健康风险可能包括特定类型的癌症、死胎和急性辐射综合症。

Weak vital registration systems, especially in the regions where most stillbirths occur, limit the availability of data and hamper the calculation of precise estimates.

生命登记系统存在的薄弱环节，尤其是在死产发生最高的地区，使数据的可用性受到限制，同时也阻碍了对精确估值的计算。

Birth defects and stillbirths account for about 30 % of the deaths in twins and multiple pregnancies.

出生缺陷和死产约30%的原因是双胎妊娠.

Better living conditions mean more live births and fewer stillbirths.

生活条件改善就会有较多的活产,较少的死产.

Vital registration systems must be improved so that all stillbirths are counted.

生命登记系统必须得到改善，以使死产全部被统计在内。