雨水浸透的土壤比干燥的土壤含氧量少。
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。
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.
含氧量下降致使鱼类死亡。
压力使人呼吸急促，降低血管里的含氧量。
Stress causes people to breathe faster and get less oxygen into the bloodstream.
当人的呼吸暂停时，血液中的含氧量会降低。
When a person stops breathing, oxygen levels in the blood decrease.
这两处地区水的含氧量不足以维持鱼类的生存。
两个浓度和局部压力增加氧的含氧量增加的全身。
Both the increased concentration and the partial pressure of oxygen increase oxygenation of the whole body.
血液含氧量可能会下降到被认为需要紧急救护的水平。
The level of oxygen in our blood will actually decrease to levels that would be considered a medical emergency.
水中的含氧量很高，所以你不会有任何呼吸方面的问题。
The level of oxygen is very high in water, and you will not have any breathing problems.
海水温度的升高同样是个威胁：温水的含氧量比冷水低。
Rising ocean temperatures arealso a threat: Warm water holds less oxygen than cold water.
雌激素可使动脉血管扩张，含氧量高的血液得以流向胎儿。
Oestrogen helps to keep open the artery carrying oxygen-rich blood to the foetus.
所以，大气含氧量由这些物质的深埋和掘出的平衡关系所决定。
So oxygen levels can go down as well as up, depending on the balance between burial and exhumation.
在手术过程中，麻醉师会观察病人的心率，血压和血液含氧量。
During an operation, the anesthesiologist will observe the patient's heart rate, blood pressure and amount of oxygen in the blood.
我们不清楚是否组织因为缺氧而死，或是在含氧量恢复时死掉。
"We don't know if tissue dies because of a lack of oxygen or when oxygen levels are restored," says Whitesides.
死区之所以得名概因其含氧量低，造成该地区水生生物无法生存。
The Dead Zone is aptly named due to the low levels of oxygen, causing no aquatic life to survive in this area.
这就意味着含氧量的减少很大程度上取决于我们烧了多少的化石燃料。
That means the drop in oxygen will depend largely on how much more fossil fuel we burn.
这类水来源于地下水源，含氧量很低，还含有大量硫和其它化学物质。
This type of water comes from underground sources and has low levels of oxygen, yet high amounts of sulphur and other dissolved chemicals.
含氧量23%是可以非常迅速地达到的，所有人都必须意识到这种危险。
Oxygen levels of 23% can be reached very quickly and all personnel must be aware of the hazard.
有些技术手段还被用于在两极之间迂回地飞行的飞机上来测量大气中的含氧量。
Some of these techniques are being used on board a plane that is zigzagging from pole to pole.
这些年轻的恒星提供的重元素很少——例如，它们的含氧量仅为太阳的20%。
These youngsters had low supplies of heavy elements-for example, their oxygen content was only 20 percent of the sun's.
这将会导致大气中现有的含氧量进一步降低1.1个百分点，降至20.7%。
This would translate to a loss of about 1.1 per cent of our present stock of oxygen - down to 20.7 per cent of the atmosphere.
由于严峻的干旱导致的马拉·奎利河水中含氧量缺乏导致了河中数以千计的鱼死亡。
Plummeting water oxygen levels due to a severe drought have led to thousands of fish dying along the Manaquiri River.
现在，他和他的同伴用了许多方法，包括质谱分析法以及紫外探测法来测量含氧量。
Now he and his collaborators use several methods, including mass spectroscopy and ultraviolet probes.
深呼吸可以促进人的肺部排出浊气，添加肺活量和血液中的含氧量，加速血液轮回。
Deep breathing can promote the lungs Zhuoqi, add the vital capacity and the amount of oxygen in the blood, accelerate blood circulation.
由于大气中氧气含量的减少，较少的氧气溶于海水，使得海水中的含氧量轻微的减少。
As atmospheric oxygen levels fall, less oxygen will dissolve in seawater, depleting levels slightly.
三亿年前，蜻蜓和蜈蚣长得惊人的巨大，一部分原因是因为空气中的含氧量高达30%。
Three hundred million years ago, dragonflies and millipedes grew to frankly disturbing sizes - thanks in part to levels of oxygen in the atmosphere as high as 30 per cent.
然而，如果我们还是坚持再燃烧几个世纪的化石燃料，那么，含氧量下降的幅度势必会更大。
But if we continue to burn fossil fuels for centuries more, levels could fall much further.
然而，如果我们还是坚持再燃烧几个世纪的化石燃料，那么，含氧量下降的幅度势必会更大。
But if we continue to burn fossil fuels for centuries more, levels could fall much further.
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