它的工作原理是分析传入声音的声波并产生新一轮向外扩散的声波。
It functions by analyzing the waves of the incoming sound and creating a second set of outgoing waves.
防止核扩散的必要性似乎清清楚楚。
这是它迅速扩散的原因之一。
令观察家担心核扩散的国家在中东并非只有伊朗。
Iran isn't the only Middle Eastern nation that has observers worried about nuclear proliferation.
对于严重扩散的病变，全身化疗是首选的治疗方法。
For severe widespread disease, systemic chemotherapy is the preferred treatment.
总体说来，美国正在中东设法加强防止核扩散的文化。
More generally, the United States is trying to reinforce a culture of nonproliferation in the Middle East.
工业核查是增进缔约国互信、防止化武扩散的重要手段。
Industry verification is an important tool for improving mutual trust amongst States Parties and for non-proliferation of chemical weapons.
这个简单胡乱的作为极大促进了破坏全球非扩散的制度。
This single wanton act probably did the most to undermine the global non-proliferation regime.
防扩散的目的在于维护和促进国际和地区的和平与安全。
The purpose of nonproliferation is precisely to maintain and promote peace and security in regions and around the world.
这两个转折本应标志着全球防止核扩散的努力取得了进展。
Both moves ought to signal advances in the global effort to stop the bomb's spread.
大规模杀伤性武器扩散的危险日见突出，威胁着世界和平。
The danger of proliferation of weapons of mass destruction (WMD) is ever more salient, posing grave threat to world peace.
旅行者只需遵从预防感染扩散的一些简单建议，即可保护自己和他人。
Travellers can protect themselves and others by following simple recommendations related to travel aimed at preventing the spread of infection.
同时，糟糕的天气推迟了TEPCO限制工厂辐射扩散的计划。
Meanwhile, bad weather has delayed TEPCO's plans to limit the spread of radiation from the plant.
对于该扩散的担心引起了主权信用违约互换利差扩大，借贷成本增加。
Concerns over contagion have caused sovereign credit-default swap spreads to widen, and the cost of borrowing to rise.
旅行者应遵从预防感染扩散的简单建议，如注意呼吸道卫生等，保护自己和他人。
Travellers can protect themselves and others by following simple recommendations aimed at preventing the spread of infection such as attention to respiratory hygiene.
护林员可以从飞机上扔下传感器来探测火情——准确的方位和扩散的速度、方向。
Forest rangers can drop the sensors from aeroplanes to detect fires, showing their exact location and how fast and in what direction they are spreading.
由于死寂之区扩散的问题得到关注，在很多美州水域地区“抓换”计划已经大量涌现。
Already cap-and-trade schemes are springing up in some American watersheds because of concern about the spread of dead zones.
该报告显示了公众对病毒扩散的担心正在下降，担心人数由上周的50%减少到40%。
The report noted a decline in public worry about the virus spreading, with 40% worried about the virus, compared with 50% last week.
然而，一项针对禽疟扩散的新的分析显示，至少对于禽类来说，确实应该担忧。
However, a new analysis of the spread of avian malaria shows that for the birds, at least, there is a real worry.
从前没有人记录过这种海洋哺乳动物的学习行为短时间内在种群中扩散的现象。
No one has ever before documented the spread of a learned behavior through a population of these Marine mammals over a short period of time.
所有这些所导致的结果就是关于癌症干细胞观于癌症扩散的假设看上去前景光明。
The upshot of all this is that the stem-cell hypothesis of cancer growth looks a good one.
所有这些所导致的结果就是关于癌症干细胞观于癌症扩散的假设看上去前景光明。
The upshot of all this is that the stem-cell hypothesis of cancer growth looks a good one.
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