游离基

Ellagic acid helps reduce free radical damage and protect the nuclei of cell DNA against damage.

柔花酸能有效对抗游离基，更深层保护细胞中的DNA。

Contains SPF15 and PA++, protecting the skin against UVA and UVB rays and melanin formation. The patented Bitter Orange Peel ingredient gives added protection, effectively protecting your skin against free-radical activity.

具防晒指数 SPF15 及 PA++，有效抵御 UVA/UVB 紫外光的侵害、抑制黑色素的形成；更蕴含专利抗氧化成份酸橙皮，全面抵御游离基对皮肤造成的损害，美白之余，亦可收娇嫩肌肤之效。

Chaparral extracts blended with Shea Butter and Vitamin E. Offers a long lasting hold and combat free radical damage.

灌木丛精华混合牛油树脂和维他命E，提供持久保护，远离游离基的损害。

The role of the reclaimed rubber: smoke sticky pine tar containing other renewable agent, during which small molecules can penetrate into uniform knot so that sulfur containing rubber between macromolecules to swelling, reticular structure of relaxation, an increase of molecular the distance between chain and oxygen penetration, the other can also serve as free radical acceptor, has inhibited the role of gelation, but also contribute to activating agent to the rubber matrix to speed up the regeneration process of proliferation and can enhance regeneration and plasticity of sticky glue and less polluting, process performance.

对再生胶的作用：粘稠的松焦油吸含其他的再生剂，其间的小分子能均匀渗透到含有结使硫的橡胶的大分子中间，使其溶胀，网状结构松驰，增加了分子链间的距离及氧的渗透，另外还可作为游离基的接受体，有抑制凝胶化的作用，还有助于活化剂向橡胶基质扩散加快再生过程，并能提高再生胶的粘性和可塑性，且污染较小，工艺性能好。

Although the hop extract was only a weak quencher of free radicals formed from 1,1-diphenyl-2-picrylhydrazyl, it demonstrated strong

虽然蛇麻抽取物只是一种由1，1-二苯基-2-苦基肼组成的游离基弱淬火物，但它在Hepa

They suggested that radicals with a double bond 13 to the carbon bearing the peroxy groups (which can only arise from acids containing more than two double bonds) cyclize to form peroxides with five-membered rings.

他们认为连接过氧基的碳原子有一个双键的游离基(只有多于两个双键的酸可形成)环化形成五元环的过氧化物。

However, in the simulation, we found that the equilibrium between growing radicals and nitroxyl radicals was a CPU-intensive and time-consuming process, therefore, a hybrid algorithm with an analytical expression for the exchange equilibrium and with a biased sampling technique for those elementary reactions of small probabilities was used to improve the stochastic algorithm.

并发现，链自由基与氮氧游离基之间的偶合-解离平衡消耗大量的运算时间，为此用偏倚抽样法和杂化运算对模拟进行了改进，得到了与原始方法基本一致的结果，从而大大缩短了运算时间。

There are currently three kinds of LFRPs, i.e., 2,2,6,6-tetramethylpiperi- dinyl- N -oxyl mediated system, atom transfer radical polymerization and RAFT-based (reversible addition-fragmentation chain transfer reaction) radical polymerization.

迄今为止，已有稳定自由基如2，2，6，6-四甲基哌啶氮氧游离基调控的体系、原子转移自由基聚合体系和可逆加成-裂解链转移聚合体系问世。

The free radical scavenging activity of four Lamiaceaeplants growing in Turkey, Stachys byzantina, Salviaviridis, S. multicaulis and Eremostachys laciniata wasdetermined using a stable DPPH free radical.

一 具去除自由基活性的4种唇形科植物生长在土耳其，绵羊水苏、丹参贻贝、长梗黄花稔和沙穗是确定可使用於稳定DPPH游离基。

The latter is chlorinated in the side chains under free-radical conditions to give 2,4-dichloro-5-fluoro-3-dichloromethyl-1-trichloromethylbenzene. The latter is hydrolysed via 2,4-dichloro-5-fluoro-3-dichloromethylbenzoic acid, which can be isolated if necessary, to give 2,4-dichloro-5-fluoro-3-formyl-benzoic acid, the aldehyde group of which is reacted to give 2,4-dichloro-5-fluoro-3-N-hydroxyiminomethyl-benzoic acid, from which, with simultaneous conversion of the carboxyl group into the chlorocarbonyl group, water is eliminated using an acid chloride to give the nitrile 2,4-dichloro-3-cyano-5-fluoro-benzoyl chloride.

随后，在游离基条件下进行侧链的氯化，得到2，4-二氯-5-氟-3-二氯甲基-1-三氯甲基苯、后者被水解，经过2，4-二氯-5-氟-3-二氯甲基苯甲酸(如果需要此化合物可以分离)，得到2，4-二氯-5-氟-3-甲酰苯甲酸，将其醛基反应，得到2，4-二氯-5-氟-3-N-羟基亚氨基甲基苯甲酸，用酰氯从其中除去水，同时将羧基转化为碳酰氯，得到一种腈，即2，4-二氯-3-氰基-5-氯-苯甲酰氯。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。