The reactive nitrogen in acid rain kills insects and fish in rivers and lakes.

酸雨里的活性氮将河和湖里的昆虫和鱼杀死。

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They doused the fructose in acid, which catalysed a chemical reaction expelling oxygen atoms as water molecules.

研究人员们接着将果糖浸入酸溶液之中，酸溶液便会对果糖催化一种化学反应-这样水分解之时就能排除内含的氧原子。

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The stuff is tough as a rock (limestone is made primarily of calcium carbonate), but it dissolves instantly in acid.

这种物质硬如磐石（石灰石主要就是由碳酸钙构成的），但易溶于酸。

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In eighteen ninety-seven, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid.

VOA: special.2009.10.20

So just keep in mind when you do see the chlorine in these drugs, it's very different from the acid chloride.

因此只要记住当你在这些药物中发现氯的时候，它不会是酰氯就好了。

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Fatty acid chains are fat molecules, they behave, if you have a lot of them in solution like oil.

脂肪酸链就是脂肪分子,它们看上去好像,如果你见过富含脂类的溶液,比如油

耶鲁公开课 - 生物医学工程探索课程节选

The Greek wines, which tend to be higher in acid, all possessed a certain aliveness.

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Rich in protein, low in acid, milk is one of the best growth mediums on the planet.

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Most garments should be folded in acid-free tissue in breathable fabric garment bags or acid-free cardboard archival boxes.

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