经凝胶电泳分析，发现四对实验对象中有两对的酶的氨基酸序列略有差异。
Analysis by gel electrophoresis revealed slight differences in amino acid sequence of the enzymes of two of the four pairs.
成年蝉有两对翅膀，当天气炎热时，这两双翅膀一起震动，发出一种巨大而连续的响声。
The adult cicada has two sets of wings which can shake together to produce a high, continuous sound when the weather is hot.
两对夫妇原本对彼此一无所知。
它大概能确保不可能有两对是相同的。
嗯，我要和两对夫妇一起吃晚餐。
有时出现两对脚印，有时却仅有一对。
Sometimes there were two sets of footprints, other times there was one only.
我看到门口边上有两对鞋。
他的语调也很轻快，让门外几尺外的两对耳朵听到。
He kept his tone lively for the two pairs of ears just a few feet away.
这是一个我们期待已久的两对夫妻的约会。
It was the double date we had looked forward to more than any other.
1920年这两对夫妇甚至一起在欧洲过蜜月。
The two couples even honeymooned together in Europe in 1920.
他们的孩子和他的妻子不得不照顾两对老人。
Their child and his wife have to take care of two old couples.
两对夫妇最终在妊娠三个月左右的时候见了面。
The couples finally met about three months into the pregnancy.
如果有三张不同的牌面，则有两对或三张相同的牌。
If there are three different faces, there is either two pair or three of a kind.
矩形色系或者四色系是指由两对互补色组成的颜色。
The rectangle or tetradic color scheme uses four colors arranged into two complementary pairs.
当有两对恋人一起出去时，我们称之为“结对约会”。
两对FDIC的华盛顿办公室六楼会议室设一个执行工作组。
Two conference rooms on the sixth floor of the FDIC's Washington office housed an implementation working group.
首先，请注意括号：最高层次由两对括号组成：(\S) 前复杂的字符串。
Notice the parentheses first: the highest level consists of two pairs: a complicated bunch of stuff followed by (\s).
使用TwitterWeb服务注册应用程序，您可以得到两对密钥。
By registering an application with the Twitter web service, you get two pairs of keys.
虽然这两对都有很强的互补性，但是每一对的两者之间都不是相互依赖的。
While both pairings have a strong chemistry, they are not dependent on one another.
两对选手分别被给了两小货车鱼，并且被告知要在晚上七点之前卖光所有的鱼。
The teams were given two vans full of fishes each and they had to sell all of them before 7 p.m.
然而仅存30只，且只有两对在2008年配对繁殖，凤头燕欧又真是命悬一线。
But with a population of only 30, and only two breeding pairs in 2008, its fate hangs by a thread.
新的内部类可以帮助我们了解下列两对新方法，并有助于我们在Thread中使用它们。
This new inner class helps us to understand and use the following two pairs of new methods in thread.
这两对程序员应该注意这种分支现象，查出对方的版本号，并调整他们的集成成果。
The two pairs of programmers should notice this branching, seek each other out, and coordinate their integration efforts.
两对情侣合成一组，一个传达者分别向自己的另一半和一个陌生人传递相同的情感。
Couples were grouped in foursomes, and the same encoder conveyed the emotions to both a romantic interest and a stranger.
两对密钥背后的安全机制被称为开放式验证（OAuth）协议（见参考资料）。
The security mechanism behind the two pairs of keys is called the Open Authentication (OAuth) protocol (see Resources).
从此两对父母常保持联系。苏先生说孩子亲生父母没怨恨他们，还感谢他们把孩子照顾得这么好。
The two couples have since been in frequent contact; Mr. Su said the real parents held no grudge, acknowledging that the family had cared for their son well.
现在您已经有了两对密钥，下一步是设计并配置TwitterSearchConnector。
Now that you have the two key pairs, the next step is to design and configure TwitterSearchConnector.
现在您已经有了两对密钥，下一步是设计并配置TwitterSearchConnector。
Now that you have the two key pairs, the next step is to design and configure TwitterSearchConnector.
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