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氢氧根离子有一个负电荷。The hydroxyl ion has a negative charge.

氢氧基具有极强的氧化特性。Hydroxyl has an extremely oxidizing nature.

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但是，氢氧化物却对二氧化碳毫无影响。However hydroxyl has no effect on carbon dioxide.

两个自由羟基，都容易酯化。Both the free hydroxyl groups readily undergo esterification.

莱菔多糖还具有很强的羟自由基清除能力，强于VC。Strongly hydroxyl radical scavenging ability, and higher than VC.

在水溶剂中用PBN自旋捕捉到了羟基自由基。The hydroxyl radicals could be trapped by PBN in aqueous solution.

这些羟自由基会引起分解污染物的能力。These hydroxyl radicals are capable of breaking down contaminants.

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这需要一种可知的氢氧化物，并且，其变化效果也需要是可知的。That would require an understanding of hydroxyl and its variability.

天文学家已经发现在金星大气中存在羟基。Astronomers have found the hydroxyl radical in the Venusian atmosphere.

结论枳子清除羟自由的有效部位集中在乙酸乙酯部位。CONCLUSION E was the active constituents to scavenging hydroxyl radical.

如果其中一个羟基抢断对方的氢原子，它会变成水分子。If one hydroxyl steals other's hydrogen atom, it will turn into water molecule.

利用荧光光度分析法研究了黑色素对羟基自由基的清除活性。The scavenging of melanin to hydroxyl free radicals was studied by fluorometry.

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金星快车探测器在金星高空发现了羟基，并且覆盖着星球。The Venus Express probe discovered hydroxyl in the clouds that shroud the planet.

一种三价基，由丙三醇去掉三个羟基获得。A trivalent radical derived from glycerol by removing the three hydroxyl radicals.

聚胺酯泡沫通过多羟基化合物上的羟基和二异氰酸酯反应形成。The foam was prepared through a reaction of the hydroxyl groups with diisocyanate.

通过对延迟效果进行测量，他们便能够计算出氢氧化物的数量水平了。By measuring its decay, they could calculate the amount of hydroxyl acting upon it.

适合于在汽车刹车油、乙醇等有氢氧根离子的液体中使用。Suitable for brake oil, such as ethanol with hydroxyl ion liquid used in the automobile.

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酿酒酵母BD101菌株的金属硫蛋白能清除羟基自由基。The Cu-metallothionein of Saccharomyces cerevisiae BD101 can scavenge hydroxyl radicals.

并研究了不同浓度和羟基含量对吸附性的影响。The influence of hydroxyl content and concentration on adsorbability was also discussed.

本文研究了羟基化合物对两种类型N-对甲苯磺酰基氮杂环丙烷的开环反应。Ring-opening of two types of N-tosyl aziridines with hydroxyl compounds has been studied.