| 单词 | 自由基 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔alpha〕Chemistry The first position from a designated carbon atom in an organic molecule at which an atom or radical may be substituted.【化学】 第一位：有机分子中离特定碳原子最近的位置，在此位置上原子或自由基可以被取代美国传统〔free radical〕An atom or group of atoms having at least one unpaired electron, which makes it highly reactive.自由基：至少有一个未配对的电子（这使它具有高度的反应性）的原子或原子团美国传统〔free radical〕An organic compound in which some of the valence electrons are unpaired, occurring as a normal byproduct of oxidation reactions in metabolism.自由基化合物：其中有一些价电子未配对的一种有机化合物，作为新陈代谢中氧化反应的正常副产物而存在美国传统〔free radical〕It is thought that free radicals can damage cells.有人认为自由基能破坏细胞。朗文当代〔oxidative stress〕A condition of increased oxidant production in animal cells characterized by the release of free radicals and resulting in cellular degeneration.氧化压力：动物细胞养化物质生产增多的情况，特征为释放自由基而导致细胞退化美国传统 |
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