我们希望能够减缓疾病的传播速度。
海啸的传播速度相当缓慢，速度可达每小时500英里。
Tsunamis travel fairly slowly, at speeds up to 500 miles an hour.
病毒的传染性将对国内和国际传播速度产生影响。
The contagiousness of the virus will influence the speed of spread, both within countries and internationally.
近几十年来，知识的传播速度大大加快。
This diffusion of knowledge accelerated dramatically in recent decades.
声音在水中的传播速度要比在空气中快。
Sound travels faster through water than it does through air.
信息传播速度更快捷。
疾病传播速度极快。
起初，吉林用激光束测量光在这些空气样本中的传播速度。
Originally, Keeling measured the speed of light in the air samples with a laser beam.
意思是艾滋病在非洲的传播速度超过了治疗的速度。
更复杂的技术模仿起来难度大，传播速度就慢了下来。
More complex technologies are harder to copy, so their diffusion has been slower.
岩层断裂引发深震传播速度很快——大约3km/秒。
The rupture in the rock that causes a deep earthquake propagates rapidly—at about 3km a second.
但大气波动会影响信号的传播速度，从而导致计算错误。
However, errors creep in when atmospheric fluctuations disrupt the signal speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
马克思·威尔指出光是种电磁波，其在真空中的传播速度是个常数c。
Maxwell showed that light was a vibration in the electromagnetic field, and that it travelled at a constant speed, c, in a vacuum.
XDR - TB和任何其它形式的结核在传播速度方面可能没有差别。
There is probably no difference between the speed of transmission of XDR-TB and any other forms of TB.
光在水、玻璃，甚至是空气中的传播速度比起在真空中慢得多。
Light travels slower through water, glass, even air, than through a vacuum.
非洲各国必须继续采取努力，力争减缓艾滋病毒传播速度，扭转传播趋势。
As well, African countries must continue to champion efforts to slow and reverse the rate of new HIV infections.
然而，当该补丁的传播速度比病毒来得慢时，它可能并不能够阻止病毒的蔓延。
However, while the patch may slow the spread of the virus it may not be enough to stop it.
在深海水域，海啸的传播速度像喷气式飞机一样快，但在海面看到的波浪不大。
Tsunamis travel as fast as jet aircraft in deep water, where they are spread over a far deeper water column and make for smaller and very gradual waves at the surface.
换句话说，如果这些学说完全切合实际情况的话，则高能伽马射线的传播速度要慢于光速。
In other words, if these theories accurately describe nature, high-energy gamma rays travel slightly slower than the speed of light.
这应该有助于了解有多少病例，有助于了解病毒传播速度及保持这种速度的可能性。
That should show how many cases there may have been, how readily the virus spreads, and how likely it is to maintain transmission.
换言之，他们声称，除非有迄今未被探测到的系统误差，中微子传播速度超过了光速。
In other words, they are claiming that, unless there is some hitherto undetected systematic, neutrinos are traveling faster than light.
因为全球化，如今疾病的传播速度非常的快——全球人们亲眼目睹了H1N1在全球的迅速蔓延。
Because of globalization, diseases today spread even faster - witness the rapid worldwide spread of H1N1 currently unfolding.
海啸波在深海传播速度近似于喷气式飞机，大约15小时后到达海地，20小时后到达太平洋彼岸。
"Tsunami waves in the deep ocean travel about the same speed as a jet plane and would take about 15 hours to reach Hawaii and about 20 hours to reach the other side of the Pacific, " he said.
当然，超声波很早就已用于医疗成像，其应用的依据是声波在密度更大的组织中传播速度更快。
Ultrasound has, of course, long been used in medical imaging. It relies on the fact that sound travels faster through denser tissues.
而这就是传播速度超级快的实时社交网络魅力所在， Bit.ly也属于这个网络的一部分。
Such is the nature of the super-fast, perhaps Real Time, social web that Bit.ly is a big part of.
然而，这实际上这样并不能增加电磁信息的传播速度- 电磁信息是靠波幅整体的形状来传递的。
This, however, does not increase the speed at which the actual electromagnetic information travels — this is conveyed by the overall shape of the wave's amplitude.
科学家发现，单个光子的前驱波头一般以光速c传播，就像由大量光子携带的信号的传播速度一样。
The scientists found that the precursor wave front of a single photon always travels at c, like the signal velocity of large groups of photons.
科学家发现，单个光子的前驱波头一般以光速c传播，就像由大量光子携带的信号的传播速度一样。
The scientists found that the precursor wave front of a single photon always travels at c, like the signal velocity of large groups of photons.
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