free radical
英 [ˌfriː ˈrædɪkl]
美 [ˌfriː ˈrædɪkl]
n. 自由基; 游离基
牛津词典
noun
- 自由基；游离基
an atom or group of atoms that has an electron that is not part of a pair, causing it to take part easily in chemical reactions. Free radicals in the body are thought to be one of the causes of diseases such as cancer.
柯林斯词典
- 自由基;游离基
Free radicalsare atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of ageing, heart disease, and some cancers.
英英释义
noun
- an atom or group of atoms with at least one unpaired electron
- in the body free radicals are high-energy particles that ricochet wildly and damage cells
双语例句
- They are large molecules that are able to maintain stability even if they are in a free radical form.
抗氧化剂是很大的分子团，即使是在自由基的状态下它们仍能保持稳定。 - Study on the ability of scavenging free radical of the different extracts from leaves of Eucalyptus
桉树叶不同提取物对自由基的清除能力研究 - The paper reviewed the modification of chitosan by free radical polymerization and atom transfer radical polymerization ( ATRP), emphasized the application of ATRP on graft copolymerization of chitosan.
综述了普通自由基聚合和原子转移自由基聚合（ATRP）反应对壳聚糖及其衍生物进行修饰改性的研究现状。着重介绍了ATRP技术在壳聚糖接枝改性方面的应用。 - This reaction has been classified as a free radical chain process.
这种反应是按自由基连锁反应的历程进行分类的。 - OBJECTIVE: To study the effects of anaerobic interval training on free radical metabolism in rats.
目的：观察无氧间歇训练对大鼠体内自由基代谢的影响。 - Objective To investigate the mechanisms of nonenzymatic glycosylation inducing myocardial aging and free radical theory.
目的以非酶糖基化和自由基学说探讨心肌老化的发生机制。 - The high quality high-solids hydroxyl acrylic resins with low viscosity were prepared by free radical polymerization.
合成的改性物对羟基树脂有极好的相容性，可以与羟基丙烯酸树脂配成涂料。 - The Effect of Dioxin on Expressions of AhR Genes and the Free Radical
二恶英中毒对AhR基因表达和自由基水平的影响 - Free Radical Scavenging Effects of Extracts from Various Parts of Citrus
柑橘不同部位提取物对羟自由基的清除作用研究 - The anti-oxidizing function can prevent the aging of skin caused by free radical.
具有抗氧化功能，可抵御自由基所造成的肌肤老化。