第二个是可在数亿分之一秒的时间里实现数千伏电压的通断，这是一项前所未有的成就。
The second advance is a way of switching thousands of volts on and off in a few billionths of a second, a previously impossible feat.
当晶体大小大约为3纳米（1纳米等于10亿分之一米）时，天然丝材料具有超强的强度与延展性特征。
When the crystal size is about three nanometers (billionths of a meter), the material has its ultra-strong and ductile characteristics.
杜克的科学家们所说的“超冷”意指超级冷却到150微开尔文左右——这仅仅比绝对零度高几亿分之一开尔文。
When the Duke scientists say "ultra-cool" they mean uber-cooled to around 150 micro-Kelvin — that's only a few billionths of a degree Kelvin above absolute zero.
在一个人79年的生命中，可能才只有250亿分之一秒的差别。但是却可以应用于全球定位系统和地球物理学等领域中。
The difference isn't much, about 25 billionths of a second over a 79 year life time, but it will have more practical applications in areas like global positioning systems and geophysics.
[color=#000000]第二个是可在数亿分之一秒的时间里实现数千伏电压的通断，这是一项前所未有的成就。
[font=Times New Roman][color=#000000]The second advance is a way of switching thousands of volts on and off in a few billionths of a second, a previously impossible feat.
磁共振力显微技术的原理是，将被测样本附着在一个很小很小的硅悬臂上（约为1亿分之一米长和1000亿分之一米宽）。
With MRFM, the sample to be examined is attached to the end of a tiny silicon cantilever (about 100 millionths of a meter long and 100 billionths of a meter wide).
我们预计每年用于拯救文明的开支合计不到2000亿美元，相当于目前全球军费开支的六分之一。
The cost we project for saving civilization would amount to less than $200 billion a year, 1/6 of current global military spending.
然而，我们预计每年用于拯救文明的开支合计不到2000亿美元，相当于目前全球军费开支的六分之一。
Yet the cost we project for saving civilization would amount to less than $200 billion a year, 1/6 of current global military spending.
目前耕种中的面积为1.5亿公顷，因此如果剩下的土地也用于耕种，就有三分之一的增长。
The area currently under cultivation is 1.5 billion hectares, so if all that extra land could be used it would represent an increase of one-third.
二十多亿人(世界总人口的三分之一)感染了结核杆菌——引发肺结核(TB)的细菌。
More than two billion people, or a third of the world's total population, are infected with Mycobacterium tuberculosis, the bacteria that causes tuberculosis (TB).
世界卫生组织估计，每年不安全的食品使得20亿人患病，约是全球人口的三分之一。
The WHO estimates that each year, unsafe food makes 2 billion people ill, about one third of the world population.
这些史前生态系统已经存在约4亿年，支撑着约三分之一的所有海洋生物，尽管只占栖息在海底的0.2%。
These prehistoric ecosystems have been around for 400million years and support one third of all Marine life, despite only inhabiting 0.2 per cent of the ocean floor.
今天这个数字已经急剧增加至4亿，超过了非洲总人口的三分之一。
Today the figure has soared to more than 400m, which accounts for over a third of Africa's population.
这样一来，官方登记的贫困人口将增加三分之一左右，总计达到约4.08亿。
That will increase the official tally of the poor by about one-third, bringing it to roughly 408 million.
美容产品的销售额为210亿美元，占集团全球销售额的四分之一还多。
Beauty accounts for $21 billion in sales, more than one-quarter of the group's global total.
2007年，金融服务公司的股利占全球公司7360亿美元股利的三分之一左右。
Financial companies contributed about one-third ofthe $736 billion of dividends paid globally by quoted firms in 2007.
估计有15亿人，或占世界人口四分之一的的人直接依靠正在退化的土地为生。
An estimated 1.5 billion people, or a quarter of the world's population, depend directly on land that is being degraded.
在欧洲，情况将更为显著，90%受调查的公司计划让预计2.19亿无线用户-欧洲人口的三分之一-可访问其站点。
In Europe, the situation will be even more marked, with 90% of companies surveyed planning sites accessible to the projected 219 million wireless users — one-third of the European population.
全球大约有20亿人，即全世界三分之一的人口摄碘量极低，包括中国和印度的数亿人在内。
Worldwide, about two billion people -a third of the globe -get too little iodine, including hundreds of millions in India and China.
这一预计的假定是，中国互联网广告市场规模届时将增长至150亿-200亿美元，而谷歌继续持有将近三分之一的市场份额。
The estimate is based on the assumption that Google would otherwise continue hold roughly a one-third share of a market that could grow to $15 billion to $20 billion by then.
根据世界银行本周发表的一份报告，2005年全球最贫困人口有14亿，占世界总人口的四分之一多一点。
JUST over a quarter of the world's population, or 1.4 billion people, lived in extreme poverty in 2005, according to a report released this week from the world Bank.
根据世卫组织的最新估计，20亿人 -或世界人口的三分之一处于缺碘的危险。
The latest WHO estimate is that 2 billion people are at risk of becoming iodine deficient – or one third of the world's population.
2006年，中国共出口3.854亿部手机，占当年全球近10亿总销量的三分之一以上。
In 2006, China exported 385.4 million cellphones, or more than a third of total global consumption that year of nearly one billion.
世界上最大的此类网络FaceBook，最近宣布其6亿用户的中的三分之一是通过手机获得服务的。
Facebook, the world's biggest such network, recently announced that a third of its nearly 600m members access the service on their mobile phones.
但是，尼日利亚的人口有1.8亿或更多，快要占到非洲人口的五分之一。
But Nigeria, at 180m or more, is not far off 20 per cent of Africa's population.
但是，尼日利亚的人口有1.8亿或更多，快要占到非洲人口的五分之一。
But Nigeria, at 180m or more, is not far off 20 per cent of Africa's population.
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