There have been no studies of the effects of a low carbohydrate diet on pregnancy, so its effect on the fetus, if any, is unknown.
目前还没有关于怀孕时低碳水化合物饮食影响的研究，因此如果它对胎儿有什么影响也是不知道的。
Mother-to-child infection: the trypanosome can cross the placenta and infect the fetus.
母婴感染：锥虫可穿过胎盘并感染胎儿。
Expectant mothers may not know that what they eat affects the tooth development of the fetus.
准妈妈也许不知道她们所吃的食物会影响到胎儿的牙齿发育。
Many imaging tests are not performed during pregnancy so as not to expose the fetus to radiation.
许多成像测试在怀孕期间不能执行，以免使胎儿暴露在辐射中。
They said the mother and members of her family had not had the health problems found in the fetus.
研究人员表示，这位母亲和她的家人都没患过这名胎儿身上发现的健康问题。
Fetoscopy — a technique for direct visualization of the fetus.
直接观察胎儿情况的内窥镜。
Growing research suggests that odd food yearnings - and food aversions - may protect the fetus.
越来越多的研究表明对一些奇怪食物的偏好——和厌恶——可能是出于保护胎儿的缘故。
Growing research suggests that odd food yearnings — and food aversions — may protect the fetus.
越来越多的研究表明对一些奇怪食物的偏好——和厌恶——可能是出于保护胎儿的缘故。
Many experts are worried that BPA causes an abnormal development of the fetus and complications in delivery.
许多专家都很担忧BPA会造成胎儿的畸形发育以及生产过程中的并发症。
This finding demonstrates that the fetus is sensitive to BPA in mice and likely also in humans, Taylor said.
这一结果证明了老鼠胚胎对BPA的敏感性，人类也可能如此，Taylor说。
The microfilament, ribosomes an keratohyalin granules increased and the glycogen decreased as the fetus developed.
随着胎龄的增加，微丝束、透明角质颗粒、核蛋白体增加，糖原逐渐减少。
The ultrasound monitor is put in the patient’s line of sight, and she must also listen to a description of the fetus.
超声胎儿监护仪宜在孕妇的视线内,并且她也必须要听取有关胎儿的描述。
Could a pregnant woman be charged with child abuse if she smokes, or be denied chemotherapy if it might hurt the fetus?
如果一个孕妇吸烟，她会被控虐童吗？或者处于对胎儿的考虑，她可能无法得到化疗？
Women's exposure to pesticides, solvents and persistent organic pollutants may potentially affect the health of the fetus.
妇女对杀虫剂、溶剂和持久性有机污染物的暴露可潜在影响胎儿的健康。
The placenta also filters out many harmful substances that may be in the mother's bloodstream and could damage the fetus.
胎盘能过滤掉很多母亲血液中对胎儿有害的物质，但是它不能阻止所有的有害物质。
There have been no studies of the effects of a low carbohydrate diet on pregnancy, so its effect on the fetus, if any, are unknown.
目前为止还没有关于怀孕时低碳水化合物饮食影响的研究，因此如果对胎儿有什么影响也是不知道的。
And research suggests that the effects of maternal depression on the fetus can lead to complications both during and after pregnancy.
而且研究表明，产妇抑郁对胎儿产生的影响可能会导致妊娠期内或之后的并发症。
According to the FDA's letter-grade system for drug safety during pregnancy, most psychotropic drugs pose a potential risk to the fetus.
根据美国食品药品管理局（FDA）的妊娠期用药安全评级系统（共五级，link），绝大多数精神病类药物对胎儿存在潜在危险。
The mouse babies were oversized because fat consumed by the mother causes the placenta to provide too many nutrients to the fetus, the study said.
研究表明，超大型鼠仔是由于母亲消耗的脂肪促使胎盘提供了过多的营养给胎儿而导致的。
Parents who have a family history of a severe genetic disorder use this test to determine the chances of the fetus developing a severe genetic disease.
一般有严重家族基因病史父母们用这项测试来检测胎儿患病的几率。
The scientists studied about 100 healthy pregnant Dutch women and their fetuses, measuring changes in how the fetus responds to repeated stimulation.
科学家研究了约100名荷兰健康孕妇和胎儿，测量胎儿如何回应反复刺激的变化。
Two arteries and one vein connect the fetus to the placenta, re-circulating oxygen-rich blood and nutrients and keeping your blood separate from your baby’s.
两个动脉和一个静脉把胎儿与胎盘联结在一起，传递富含氧气和营养的血液，并把你的血液与婴儿自己的血液分离开。
Two arteries and one vein connect the fetus to the placenta re-circulating oxygen-rich blood and nutrients and keeping your blood separate from your baby's.
两个动脉和一个静脉把胎儿与胎盘联结在一起，传递富含氧气和营养的血液，并把你的血液与婴儿自己的血液分离开。
Expectant parents in Japan who can't wait to show the world what their baby will look like can now buy a 3d model of the fetus to pass around their friends.
迫不及待地向大家展示自己宝宝模样的日本准爸准妈们如今可以购买3d胎儿模型，来让亲友一睹为快了。
D. the fetus should be evaluated with heart rate monitoring because PROM increases the risk of umbilical cord prolapse and fetal distress caused by oligohydramnios.
因为胎膜早破可致羊水过少从而增加脐带脱垂和胎儿窘迫的危险，故应做胎心监测观察胎儿情况。
Taken together, these results suggest that glucocorticoid-receptor-gene methylation happens in the fetus in response to a mother's stress, and persists into adolescence.
总体看来，这些结论表明胎儿糖皮质激素受体基因的甲基化是由于母亲压力过大引起的，并且其影响将会持续到青春期。
Iodine deficiency during pregnancy not only results in brain damage to the fetus, but also in low birth weight, prematurity and increased perinatal and infant mortality.
妊娠期缺碘不仅导致胎儿脑损伤，而且导致低出生体重、早产以及围产期和婴儿死亡率增加。
Technically, back labor occurs when the fetus is in a posterior position, with its face up and the back of its head pressing against your sacrum, or the back of your pelvis.
从技术上来说，背阵痛发生在胎儿处于背对的位置，它的脸朝上而后脑勺紧靠你的骶骨或者骨盆后方。
HIV-positive women who wish to become pregnant should seek counseling about the risk to unborn children, and medical advances that may help prevent the fetus from becoming infected.
HIV阳性的女性如果想要怀孕，应当进行咨询，了解未出生婴儿的风险，以及如何使用药物来避免胎儿受到感染。
HIV-positive women who wish to become pregnant should seek counseling about the risk to unborn children, and medical advances that may help prevent the fetus from becoming infected.
HIV阳性的女性如果想要怀孕，应当进行咨询，了解未出生婴儿的风险，以及如何使用药物来避免胎儿受到感染。
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