To improve the validity of user identity authentication mechanism, a two-double authentication model integrating positive authentication mechanism and negative authentication mechanism was given.
为了提高用户身份认证的有效性，给出了一个集成肯定认证机制和否定认证机制的双层认证模型。
Both sides welcome the signing of the "Agreement for the Avoidance of Double Taxation and the Prevention of Fiscal Tax Evasion" between related agencies of the two countries.
双方对两国有关部门签署《避免双重征税和防止偷漏税的协定》表示欢迎。
This is an increase of 2% since June and nearly double the level of two years ago.
比六月份增加了2%，几乎是两年前的两倍。
Two years ago, rich countries promised at a meeting in Gleneagles to double aid flows to Africa by 2010.
两年前，富国在苏格兰鹰谷的峰会上承诺至2010年对非洲援助翻倍。
In the case of a graphic strings, two bytes constitute a character and you use the number of double bytes to represent the length of the string.
对于图形字符串，两个字节组成一个字符，使用双字节数来表示字符串的长度。
RNA molecules form double stranded helices, just as do DNA molecules, by Watson Crick pairing of nucleotides on the two complementary strands of the helix.
RNA分子能像DNA分子那样形成双链螺旋，通过沃森·克里克配对，两个螺旋的核苷链互补。
Intel Corp. 's Gordon Moore in 1965 came up with what came to be known as Moore's Law, which stated that the number of transistors on a chip will double about every two years.
1965年，英特尔公司的戈登·摩尔提出了后来被我们熟知的摩尔定律，他指出芯片上可容纳的晶体管数目，约每隔两年便会增加一倍。
His pitches stayed down, and he generated two double plays.
他的球保持投得低，他制造出两次双杀。
Our yacht was well equipped with two double cabins fore and aft.
我们的游艇设施完备，首尾有两个双人舱。
This says that computers double in power roughly every two years—an increase of more than 30 times over the course of a decade, with concomitant reductions in cost.
摩尔定律内容是每两年计算机的处理能力增加一倍（准确说是18个月翻一倍-译者）——即十年增加30多倍，同时伴随着成本的降低。
In one of the two groups, those with the highest levels of the molecule had double the risk of dying during this time period than those with the lowest levels.
在其中一组调查对象中，组织蛋白酶s含量较高的人群死亡率是含量较低人群的两倍。
Also, when rebuilding views, the time it takes to rebuild the views for two databases with the same size, is about double the time it takes for one database.
而且，当重构视图时，重构两个具有相同大小的数据库的视图所花的时间大约为重构一个数据库的视图所花时间的两倍。
At its peak it contributed 41% of domestic American corporate profits, more than double the rate two decades ago.
在顶峰时期，金融部门贡献了美国国内企业利润的41%，是20年前比例的2倍多。
During the past five years, two American psychiatrists have been helping their Rwandan colleagues deal with the double burden of HIV infections and serious mental illness.
在过去的五年里，两名美国精神病专家正在帮助他们的卢旺达同事去处理由严重的心理问题和HIV感染问题所带来的双重压力。
Two years ago, Immelt said GE would double its revenues in China to $10 billion by 2010.
两年前，伊梅尔特说通用电气将在2010年前使在华收入增长一倍，至100亿美元。
Two doubles, two double rooms, July 20th and 21st. Right?
四个人，两间双人间，日期是7月20日和21日，对吗？
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。
Among men who carried two copies of the gene variant, about a third had experienced a serious relationship crisis in the past year, double the number seen in the men who did not carry the variant.
其中携带两个变异基因副本的人，有三分之一在过去一年里经历了严重的婚姻危机，而无此变异基因的男子只有六分之一有同样经历。
Its products mainly ZGC01 end lathes and vertical lathe ZGC02 two double-column series.
其产品主要有ZGC01端面车床和ZGC02双柱立式车床两大系列。
The Arrow was over two tonnes in weight and was the length of two double decker buses.
这个箭头重超两吨，与两辆双层巴士的长度相当。
Napoleon then led them back to the store-shed and served out a double ration of corn to everybody, with two biscuits for each dog.
然后，拿破仑让大家回到贮藏室，给他们分了双份口粮，给每条狗两个小点心。
The French company Air Austral said that it placed orders for two "high density" double-decker A380s with a capacity for 840 seats.
法国奥斯特拉尔航空公司(airAustral)表示，已经订购了两架“高密度”的双层A380飞机，一次可搭载840名旅客。
Kingfisher was launched only two years ago and already has five of the giant new double-deck Airbus A380s on order.
Kingfisher仅仅成立于两年前，而已经有了五架巨型双层空中客车A380的订购。
Well, do you have any rooms with two double beds? We're a family of four.
那么，你们有没有一个大房间，然后有两张双人床的？我们是一家四口人。
The trend is that the number of transistors we can fit on a circuit will double every two years.
该定律认为我们能够在一块电路上放置的晶体管数量每两年会翻一番。
Answer: a Visual Snippet for adding two Numbers of type "double" already exists in the Visual Snippets folder as shown in Figure 1.
答：VisualSnippet文件夹中已经存在两个类型为“double”的数求和的VisualSnippet，如图1所示。
Answer: a Visual Snippet for adding two Numbers of type "double" already exists in the Visual Snippets folder as shown in Figure 1.
答：VisualSnippet文件夹中已经存在两个类型为“double”的数求和的VisualSnippet，如图1所示。
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