They created the first double helix model of DNA in 1953. Photograph: ap.
他们在1953年构建了第一个DNA双螺旋结构。
Society/Environment: First double amputee qualifiesfor 400-meter Olympic sprint in London. Places fourth.
社会及环境：双截肢者首次获得参加伦敦奥运会短跑比赛资格，并获第四名。
Macau Xiwan bridge is the first double-layer pre-stressed concrete cable-stayed bridge in the world.
西湾大桥是世界首座双层交通预应力混凝土斜拉桥。
The first double deck diesel multiple unit in China has been developed inhouse by Tangshan Locomotive and Rolling Stock Works.
介绍了由唐山机车车辆厂自行研制开发的国内首列双层内燃动车组。
The first double word of every frame points to the next frame and this is immediately followed by the address of the calling function.
每一帧的第一个双字（double word）指向下一帧，这后面紧跟着调用函数的地址。
US daredevil teenager Aaron Fotheringham has made history by performing the world's first double backflip in a wheelchair, local media reported.
据当地媒体报道，美国残疾青年亚伦·佛斯灵汉姆日前在轮椅上完成一次后空翻两下的动作，创下前无古人的纪录。
Thee UK's first double hand transplant operation has taken place at Leeds General Infirmary and the patient says his new hands look "tremendous".
英国首例双手移植手术在利兹总医院进行，病人称他的新手看起来“非常完美”。
The first double arm transplant was performed in Germany July 25, in which a 54-year-old man was given the arms of a 19-year-old boy who died in a car crash.
一名54岁男子25日在德国接受世界首例双臂移植手术，被移植手臂原属一位死于交通事故的19岁少年。
Meanwhile, newspapers' online ad sales dropped 13% year-over-year in Q1, their first double-digit decline since the Newspaper Association started measuring them in 2004.
与此同时，报纸的在线广告第一季度同比下跌13%。 这是自2004年来报业协会开始统计后首次出现两位数的衰退。
The original transplant was conducted by Prof Dubernard's team at the Edouard Herriot Hospital in Lyons, who have since performed the world's first double arm transplant.
该项移植手术是由里昂市德edouard Herriot医院的杜拜合纳德教授进行的，他曾经成功移植世界上首例双臂移植。
If the symbol were Coptic, the first symbol would be "ra" and then an unknown symbol followed by a double "S" sound.
所以如果这个符号是埃及古语，第一个符号应该是“ra”，然后是一个未知的符号，后面跟着一个双“S”音。
In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annual budget fighting fires—nearly double the percentage it spent on such efforts 20 years ago.
2015年，美国林务局首次使用55亿美元年度预算的一半以上用于灭火——这几乎是20年前火灾支出所占比例的两倍。
If I win the game, I'd like one grain of rice for the first square of the chessboard, two for the second, four for the third, and then double the amount for each of the rest of the squares.
如果我赢了，我想在棋盘的第一个方格里放一粒米，在第二个方格里放两粒米，在第三个方格里放四粒米，然后在剩下的方格里依次放两倍的米。
First, you can mix single and double quotation marks when creating a string, as long as the string USES the same type of quotation mark at the beginning and end.
第一，在创建字符串时，您可以混合使用单引号和双引号，只要字符串在开始位置和结束位置使用同一类型的引号。
The relentless pressure on rates raises a double danger. First, it could cause a banking crisis by hammering the value of bonds owned by lenders.
国债收益率面临的巨大压力会引发双重风险：首先，它可能造成银行手中的债券大幅贬值，引发银行业危机。
During economic crises her first instinct has been to double the guard around the German Treasury.
在经济危机中，她的第一直觉是为德国财政上双重保险。
The first graph he designed was a bubble chart that had double logarithmic axes, with income on one axis and health on the other.
他设计的第一个图形是一个带有一对对数坐标轴的气泡图，一条轴显示的是收入，另一条是健康。
Born Albino Luciani, Pope John Paul I was the first Pope to choose a double name, a move that honored his two immediate predecessors, Pope John XXIII and Pope Paul VI.
教皇约翰·保罗一世出生时的名字是阿尔比诺·卢恰尼，他是第一位有两个名字的教皇，这是他为了表示对他的前任教皇约翰二十三世和教皇保罗六世的尊敬。
But keep in mind that for every second you go out toofast in the first half of your race, you'll lose double that amount oftime in the second half of your race.
但是每秒钟在脑中记住如果在前半程跑的太快，你在下半程会损失一倍的时间量。
The hotel features both twin and double bedrooms, which are booked on a first-come, first-served basis.
两个单人床的双人标间和一个双人床的双人卧室。
Though there have been past hints of the existence of other planets that circled double stars, scientists said this is the first confirmation.
科学家称，虽然一直有迹象表明某些行星可能拥有双恒星，但本次的发现第一次使这种说法得到证实。
Who knows, but apparently the magazine's first issue sold 54% of its newsstand copies, which is almost double the industry average.
天知道。不过有一点很明显，该杂志第一期在报摊卖出了54%，是行业平均水平的两倍。
He'd also provided Watson, without Franklin's knowledge, with her key photograph, which showed — for the first time — the double-helix shape that underlies the structure of DNA.
他并且背着弗兰克林，把她拍摄的关键照片提供给沃森，这张照片表明——第一次表明——构成DNA结构的是双螺旋状态。
First, by helping to double American exports by 2015, which is the goal of the National export Initiative.
首先，帮助到2015年使美国出口翻一番，这是“国家出口行动计划”的目标。
This adorable calf named Meadow is believed to be the first calf ever fitted with double prosthetics.
这只可爱的小牛犊名叫美登高，它被认为是第一头装了两只假肢的牛犊。
I often try to double-check a counter the first time I add it to a report.
我经常尝试仔细检查我第一次添加到报告的计数器。
We interviewed them several times in the first few years and found rates of depression and anxiety double that of a comparison group.
在最初的几年我们多次采访了她们，并且发现她们的抑郁度和焦虑度比一个用来对比的群体高了一倍。
We interviewed them several times in the first few years and found rates of depression and anxiety double that of a comparison group.
在最初的几年我们多次采访了她们，并且发现她们的抑郁度和焦虑度比一个用来对比的群体高了一倍。
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