Second, once sleep is fully obtained, there is an increase of carbon dioxide and a decrease of oxygen in the blood that persists during NREM.
第二，一旦完全进入睡眠状态，非快速眼动期间血液中的二氧化碳增加，氧气减少。
However, we now know that since oxygen levels were much lower in the Mesozoic than we assumed, there was much less plant life for sauropods to eat than we thought.
然而我们现在知道了，由于中生代空气的含氧量比我们想象的要低得多，所以蜥脚类动物可食用的植物也比我们想象的要少得多。
At rest there is enough oxygen in the blood reaching the muscles to prevent any symptoms.
休息时尚有足够的氧气被血液运送到肌肉，所以不会有症状。
In many cases, there is a reserve of oxygen left in the patient's blood and lungs, from the last breath, and we can take advantage of that oxygen reserve and just do chest compressions.
在很多案例中，在最后的呼吸中，有氧储备在病人的血液和肺中，我们可以利用那些氧储备而只做胸外按压。
But 55 hoursand 55 minutes later, there was an explosion in one of the spacecraft’s twooxygen tanks and the second oxygen tank started to malfunction. Most otheressential services soon went offline.
但是55小时55分钟之后，飞船的一个储氧箱发生爆炸，另一个也开始出现故障，其他关键设备也很快停机。
By combining new and existing measurements, Madhusudhan has discovered that there is more carbon than oxygen in the planet's atmosphere, something never seen before.
通过结合最新的和已有的测量手段，Madhusudhan发现在这颗星球的大气中碳含量要高于氧含量，这可是一个前无古人的发现。
The explosion, he said, was due to hydrogen buildup in the steam piping that mixed with oxygen, and that there was no damage to the container with the nuclear fuel.
他表示，这次爆炸是由于聚集在蒸汽管道的氢气与氧气混合而引发的，而且未对核燃料容器造成任何损伤。
Well, if you get the combustion chamber hot enough, in point of fact, there are some reactions between nitrogen and the oxygen.
如果燃烧室的温度足够高的话，实际上在氮气和氧气之间，会发生一些反应。
It confirms there were bacteria at this time, living without oxygen, " Martin Brasier, a professor at Oxford University, said in a press release.
可以确切的说，那个时代有过细菌，生活在没有氧气的环境下。”牛津大学教授马丁.布瑞斯尔在一次新闻发布会中说道。
When there is not enough haemoglobin in the red blood cells, oxygen cannot get to all parts of the body.
当红血球里没有足够的血红蛋白时，氧气则无法到达身体各个部位。
It was long believed you yawned when there was too much carbon dioxide and not enough oxygen in your blood. A part of your brain called the brain stem detected this and triggered the yawn reflex.
很长一段时间，人们都相信打哈欠是因为血液里二氧化碳太多而氧气不足，大脑茎干觉察到这点于是触动了打哈欠的神经。
In some patients the blood flow to the legs can be so restricted that there is barely sufficient oxygen reaching the tissues even while resting.
在某些病人身上，流往腿部的血液被严重阻碍，即使在他们休息时，组织也得不到足够的氧气。
Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
在高强度下，这种聚焦会使氧原子的粒子束反转，确保了激发的原子多于未被激发的原子。
There is about one-fifth oxygen in the air, so the water rises and fills about one-fifth of the air.
空气中大约有五分之一的氧气，所以水会上升瓶子五分之一的位置。
For every 1 million atoms of hydrogen in the sun, there are 98,000 of helium, 850 of oxygen, 360 of carbon, 120 of neon, 110 of nitrogen, 40 of magnesium, 35 of iron, and 35 of silicon.
太阳中每100万个氢原子对应9万8000个氦原子、850个氧原子、360个碳原子、120个氖原子、110个氮原子、40个镁原子、35个铁原子和35个硅原子。
Because essentially no oxygen is available in our intestines, the beneficial bacteria that reside there tend to use fermentation, which is less efficient than respiration for obtaining energy.
因为在我们肠道中，是绝对的无氧环境，住在其中的有益细菌倾向于利用发酵，而发酵于获得能量而言，低效于呼吸。
For the same amount of carbon, there is twice as much oxygen as in carbon monoxide.
同一份量的碳，所需要的氧的分量却是一氧化碳的二倍。
There is in the structure a unit of pattern containing copper, sulphur, and oxygen atoms in the same proportions as that in which they occur in the molecule.
每个硫酸铜单位晶格所含有的铜、硫、氧这三种元素的原子数的比例和每个硫酸铜分子中这三种元素的原子数的比例，二者是相一致的。
There are lots of blood flow to the stomach after a meal, a drop in blood pressure, brain oxygen and nutrition drops apparently, go to sleep may cause insufficient blood supply to the brain.
还有饭后大量的血液流向胃，血压下降，大脑供氧及营养明显下降，马上入睡会引起大脑供血不足。
In the process of sulfide mineral bio-oxidization, molecular oxygen is the terminal electron acceptor. As a result, there must be a sufficient oxygen supply.
分子氧是硫化矿物生物氧化过程中电子转移的最终受体，因此硫化矿物的生物氧化过程必须供氧。
Literature at home and abroad reported that during years use of MDEA in industry, except for the on caused by oxygen, there are nearly no other degraded products.
国内外文献报道MDEA在工业上使用若干年以来除氧引起的降解外，几乎无其他降解物产生。
There would be no trees no crops no animals and no people. So water is considered to be next to oxygen in importance.
就没有树木、没有庄稼、没有动物和人，因此水被认为在重要性仅次于氧。
There would be no trees, no crops, no animals and no people. So water is considered to be next to oxygen in importance.
就没有树木、没有庄稼、没有动物和人，因此水被认为在重要性仅次于氧。
There were similarities between Berthollet 's phlogiston theory and Lavoisier's theory of heat matter in fact, so Berthollet accepted oxygen easier.
贝托莱的燃素学说实际上和拉瓦锡的热质理论有吻和之处，所以贝托莱比较顺利地接受了氧化学说。
Conclusions There is pathological oxygen supply dependance in the patients with several congenital cardiac disease.
结论重症先天性心脏病手术期间存在病理性氧供依赖。
There oxygen in the inspired gas is exchanged for carbon dioxide from the blood in the surrounding capillaries.
吸入的空气中的氧气就在肺泡里与来自周围毛细血管血液中的二氧化碳进行交换。
There have been mixed results in studies of both humans and animal models on the effects of either method of oxygen cessation on important infant outcomes.
不论用何种方式停止氧气的供应，在人类或动物实验对新生儿重要的预后项目，皆显示混杂的结果。
There have been mixed results in studies of both humans and animal models on the effects of either method of oxygen cessation on important infant outcomes.
不论用何种方式停止氧气的供应，在人类或动物实验对新生儿重要的预后项目，皆显示混杂的结果。
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