The somewhat acid flavour is caused by the presence of lactic acid.

略有的酸味是由乳酸的存在造成的。

《柯林斯英汉双解大词典》

Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.

另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。

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Content of vaccenic acid and linolenic acid in liver and chest muscle in experiment group 1 were significantly higher.

试验组1的肝脏和胸肌中所含的疫苗酸和亚麻酸含量明显更高。

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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。

麻省理工公开课 - 化学原理课程节选

They're derived from a precursor called triacylglyceride, which is as glycerol molecule with three fatty acid chains dangling off of it.

它们来源于一种叫三酰甘油的前体,由甘油分子上连接了,三个脂肪酸链构成

耶鲁公开课 - 生物医学工程探索课程节选

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

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The investigators theorize that cherries may decrease serum uric acid levels by increasing the excretion of uric acid by the kidneys.

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Stuart Lee, from Pillowell, admitted having hydrochloric acid, potassium cyanide and sulphuric acid which he stole from a business in Whitecroft.

BBC: Forest of Dean man guilty of explosives charge