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Alexandrite was discovered in 1831 and is named after Alexander II of Russia.

宝石被发现是在1831年和俄罗斯之后，亚历山大二世的名字命名。

Alf's wife has never discovered that she married a dustman and she never will

艾尔弗的妻子一直不知道她嫁给了一个清洁工，而且她永远也不会知道了

Charles Darwin and Alfred Russell Wallace discovered evolution independently.

查尔斯·达尔文和阿尔弗雷德·罗素·华莱士各自独立地发现了进化论。

The only other species in this genus was discovered by Alfred Russell Wallace, a colleague of Charles Darwin, on the Indonesian island of Sulawesi.

唯一的同属物种是由查尔斯达尔文的同事阿尔佛雷德拉塞尔华莱士在印尼苏拉威西岛发现的。

It is discovered that the Newton direction of Peng et al can be obtained from an algebraically equivalent path.

与此同时，分析了该方法与Peng等人近期工作的联系，发现互补条件的右端可表示成熵函数的负梯度。

At a recent aid distribution in Jordan, Tzu Chi volunteers discovered a Bedouin senior, Alida, with a diseased eye. They immediately arranged for her to travel to Amman for an evaluation. Doctors there determined that it was no longer possible to restore her eye, but undiscouraged volunteers are now pursuing the hope of a corneal transplant.

近期的约旦发放中，慈济志工发现一位贝都因老人阿莉妲，阿莉妲有眼疾，慈济志工立刻安排她到安曼检查，医师发现她的眼睛救不回来了，不过志工并没有因此而气馁，将尽可能协助，让阿嬷能有接受眼角膜移植的机会。

Carries on the classification to the question, analyzes each kinds of questions the explanation mentality, inquires and summarizes that it can 100 within the odd number aliquot aliquot characteristic, finally discovered that any integer can by the lowliest place digit be 1,3,7,9 aliquot integer characteristics according to the lowliest place numeric classification, each kind has certain rule.

对问题进行分类，分析各类问题的解答思路，探寻、总结出能被100以内奇数整除的整除特征，结果发现任何一个整数能被末位数字是1，3，7，9整除的整数特征可按末位数字分类，每一类都有一定的规律。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

I discovered that it is in my pocket all the while.

我发觉原来这一直就在我口袋里。

But as Thurmeier and the rest of the Blue Sky animation crew soon discovered, animating all-metal characters presented its own unique set of challenges.

但Thurmeier和其它的"蓝色天空"的动画人员发现，制作这些金属人物却有具有独特的挑战性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。