-
CPR,or cardiopulmonary resuscitation, can save a life and reduce the risk of brain damage from loss of oxygen.
VOA: special.2009.06.09
-
And, in fact, if you take the jaws of a powerful magnet and pour liquid oxygen in between the jaws, the oxygen will stop and will sit in the jaws.
实际上，如果你用一块,具有较强磁力的颚型磁铁,然后把液氧倒在颚型磁铁的中间，氧气会停在颚型磁铁中。
-
So in oxygen we have a similar situation where, in fact, we are not going to promote any of the electrons because we have two lone pair electrons no matter what we do.
在氧中，情况很类似，我们不能激发电子,因为无论如何我们都有两个孤对电子。
-
But a drop in oxygen levels can cause a health emergency in people with heart or lung problems.
VOA: special.2009.07.14
-
Well, oxygen, we'll put a hydrogen here, 1 2 3 4 hydrogen here, and one, two, three, four.
如果把一个氢放在这边，另一个氢这边，然后。
-
The result is a five to twenty percent drop in the amount of oxygen in the blood.
VOA: special.2009.07.14
-
I mean, if the energy is lower to occupy a smaller volume, then if I have this room and a bunch of molecules of oxygen, and nitrogen and what have you in the air, and there are weak attractions between them, why don't they all just sort of glum together and find whatever volume they like.
我的意思是，如果占据小的体积会使能量降低，如果我有这样一个空间,和一些氧气，氮气和其他空气中有的气体，并且分子之间还有微弱的相互作用，为什么他们不黏在一起,然后占据他们所想要占据的体积。
-
Dangerous mountain paths. And they all risk developing a serious health disorder caused by lack of oxygen.
VOA: special.2010.06.30
-
The red blood cells that carry oxygen only live within your circulation for about a month and so you have to continually be replacing cells that are dying and so there are cells that are proliferating.
携带氧的红细胞,在你的循环系统中的寿命只有一个月,因此你必须持续不断地更新衰老的细胞,所以就有在增殖的细胞
-
Engineers had to boil off the remaining oxygen by turning on a heater in the tank.
VOA: special.2009.07.22
-
So it's going to be a sigma bond, 1s and we have oxygen 2 s p 3 and hydrogen 1 s.
它是sigma键，我们有氧2sp3和氢。
-
Scientists say enough oxygen remains in a person's system for several minutes after breathing stops.
VOA: special.2009.06.09
-
And what can happen is that this cartoon shows that if you put a magnetic field on liquid oxygen, that liquid oxygen would be drawn towards the magnetic field.
能够发生的就是,在动画里有所体现,如果你把液氧放在磁场中，液氧会被吸起来,朝着磁场的方向。
-
And there was a new fuel, a mixture of liquid ammonia and liquid oxygen.
VOA: special.2010.07.07
-
Here's a data set. There is oxygen.
这儿是一个数据集，那是氧。
-
High levels of domoic acid in the sardines may have worsened the effects of oxygen loss in the water as the fish crowded into a limited space.
VOA: special.2011.03.15
-
At about nineteen-thousand meters, the air is so thin and the amount of oxygen so small that a person needs a lot of special equipment to survive.
VOA: special.2011.04.06
-
One effect of this lack of oxygen to the brain is a headache.
VOA: special.2009.07.14
-
The loss of one oxygen tank should not have been a major problem.
VOA: special.2009.07.22
-
"Until he saw me walking around with a can of liquid oxygen.
VOA: special.2010.06.23
-
These problems were more common among males, those with injured nerve tissue in the brain and those who had been given oxygen supplies for days as a baby.
VOA: special.2010.11.30
-
It results from a lack of oxygen to the brain.
VOA: special.2009.07.14
-
"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.
VOA: standard.2009.12.17
-
The Algenol bioreactors also produce oxygen as a byproduct and that can be fed into a power plant to burn coal more cleanly.
VOA: standard.2009.09.02
-
"This will wedge itself in so tightly and completely block the airway that within minutes, because of lack of oxygen, a child will die."
VOA: standard.2010.02.23
-
"Twenty percent of attacks were improved on placebo,which is air, and 78 percent of attacks were improved on oxygen, a clear difference in favor of oxygen,"
VOA: standard.2009.12.17
-
"He saw me walking around with a can of liquid oxygen.
VOA: standard.2010.06.21
应用推荐