• 一个化合物分解成元素

    Split a compound into its elements.

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  • 一个化合物分解的时候,原子恢复原来未曾改变的面貌。

    And when a compound is decomposed, the atoms are recovered unchanged.

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  • 确定一个化合物的结构式之前首先知道分子式

    Before we can assign a structural formula to a compound, we must first know its molecular formula.

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  • 大多化学鉴别情况下,如何发现化合物极为重要

    As with most chemical exploration, it is important to have an idea of what compounds are being searched for in the first place.

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  • 测试化合物巨大非常昂贵工作——考虑传统药物的数量,沧海一粟

    Testing each compound would be a huge and very expensive undertaking - a drop in the bucket considering how many traditional medicines there are.

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  • 化合物分子一种以上不同形式化学结构式来表示现象称之为化学结构表示的歧义性

    The phenomenon that one compound can be represented by more than one structural diagrams is called ambiguity of chemical structure.

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  • 失败合成化合物不能观察特殊性质或者不能影响一个特殊反应,这些对于判定那个化合物及其性质,反应不存在并非积极证据

    The failure to synthesize a compound, to observe a particular property, or to effect a particular reaction can never be positive proof of the nonexistence of that compound, property, or reaction.

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  • 然而尽管当地铁浓度立即提高一个这样区域实验释放化合物却没有产生大量的浮游生物。

    However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.

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  • 咖啡含有葫芦巴碱,这种抗菌化合物,它不仅提供良好的香气而且可能预防龋齿一个因素。

    Coffee also contains trigonelline, an antibacterial compound that not only gives it a wonderful aroma but may be a factor in preventing dental caries.

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  • 日本名古屋大学一个团队已经测试了可以作为储能材料化合物

    Another team at Nagoya University in Japan has tested calcium compound as an energy storage material.

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  • 而后研究人员一张膜过滤溶液时,表面活性剂被排出化合物们立马自发重组一个活力焕发成形光电管

    Then, when the researchers removed the surfactant by pushing the solution through a membrane, the compounds spontaneously assembled once again into a perfectly formed, rejuvenated photocell.

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  • 不同元素化合物吸收释放不同颜色光波通过一个恒星光谱进行研究,我们能够推测可能成分

    Different elements or compounds absorb and emit different colors or wavelengths of light, and by studying a star's spectrum, one can divine what its composition might be.

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  • 细菌吃掉原油所占比重成为一个未知数。细菌吃石油本质上是无害化合物提炼出来纳入食物链

    An unknown percentage of the oil would have been eaten by bacteria, essentially rendering the compounds harmless and incorporating them into the food chain.

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  • 电流一个方向上电解化合物两种金属相反电极沉淀

    Applying a current in one direction splits the compound, and the two metals are deposited onto opposite electrodes.

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  • 检测到化学化合物(HOH),(O)一个原子

    The most frequently detected chemical compound is water (HOH) with oxygen (o) as one of its atoms.

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  • 美国一个小组发现称为二唑化合物可以针对血吸虫生存所需

    A team in the United States found that chemical compounds known as oxadiazoles can target an enzyme needed for the survival of Schistosoma.

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  • 另外一个需要单独加以考虑的问题一些金属或者化合物渗入卤水

    A separate problem may be that some metals or chemicals leach into the brine.

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  • 两者融合时,合成一个完整荧光化合物,产生

    When the two fused together, the fluorescent compound became complete, emitting light.

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  • 只要两种化合物矿物之间交换电子它们就是能量一个微小电池

    As long as you can find two chemicals or minerals that can transfer an electron between them, you've got an energy source, a microscopic battery of sorts.

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  • 这种方法其他有效因为构造中的碳氢化合物引入两个原子不是

    The method is more efficient than others because it adds two carbon atoms at a time, rather than one, to the hydrocarbon molecules being formed.

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  • 但是根本不是一个低碳水化合物饮食

    But, it wasn't a low-carb diet at all.

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  • 生化角度讲,碳水化合物一个含有元素简单化合物

    On a biochemical level, a Carbohydrate is a simple fusion of carbon, hydrogen and oxygen molecules.

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  • 我们面临问题我们能源政策长的一个时期忽视美国境内的碳氢化合物现在我们要为此付出代价

    What is happening is that we have had an energy policy that neglected hydrocarbons in the United States for a long period of time, and now we are paying the price.

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  • 简单碳水化合物称作“单糖”,一个两个分子组成。

    Simple carbohydrates are classified as “Monosaccharides” and chemically consist of one or two sugar units.

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  • 能量饮料含有复杂混合缓慢中期快速署理,并供应能量的碳水化合物身体一个较长时期内的时间

    Energy drinks contain complex carbohydrates - a blend of slow -, medium - and fast-acting sugars - and are able to supply energy to the body over an extended period of time.

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  • 如果一个合适平衡膳食最好消息就是可以计算……胆固醇能量脂肪碳水化合物忘记

    The good news is you can forget counting... cholesterol, calories, fat grams, carbohydrates, etc, if you eat a properly balanced diet.

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  • 通常一个通过减少垃圾食品化合物食用来改变卡路里摄取来源就会看到明显的健康状况改善

    A person making that kind of shift, along with cutting way back on junk food and carbohydrates, might still see positive health changes.

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  • 通常一个通过减少垃圾食品化合物食用来改变卡路里摄取来源就会看到明显的健康状况改善

    A person making that kind of shift, along with cutting way back on junk food and carbohydrates, might still see positive health changes.

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