羟基自由基参与的化学反应属于游离基反应，化学反应速度极快。
The chemical reaction of hydroxyl radical is free radical reaction, whose reaction speed is very high.
首先指出脱羧反应发生的原因，继而论述其反应的历程——离子型反应和游离基反应历程。
In this thesis, the author first pointed out the cause m which decarboxylation can happen and then Sammarized the Mechamsms of ionic reaction and free redical reaction.
实际上，尽管抗氧化剂同游离基之间会产生反应且能中和自由基，也可以阻止其产生损害，但几乎没有证据证明抗氧化剂能阻止癌症。
In reality, although antioxidants interact with and neutralize free radicals and prevent them from causing damage, there is little available evidence that antioxidants prevent cancer.
证明了其聚合反应为游离基机理。
A free radical mechanism for acrylonitrile polymerization was proposed.
对分别使用酸酐和相应的游离羧酸作酰基给体时的反应性能进行了比较。
The performance of the reaction using an acid anhydride as an acyl donor was compared with that using its corresponding free acid.
H2O2也是具有高度反应活性的羟基游离基的前体，并参与降解过程。收藏。
The H2O2 also is a precursor of the highly reactive hydroxyl radical, which participates in wood degradation.
重点探讨了扩链过程中对于游离nco基含量测定中存在的副反应，并给出实际NCO基含量的计算公式。
Emphases were placed on the side reactions in the measurement of free NCO in chain extended process. The account formula of the real content of free NCO was given.
从而用微扰分子轨道理论半定量地解释了脂肪族的游离基取代和芳香族的游离基取代反应的反应性和选择性。
The reactivities and selectivities of aliphatic and aromatic free-radical(substitution)reactions were explained semi-quantitatively by the perturbation molecular orbital theory.
它作用于油脂自动氧化产生的游离基，形成稳定、低能量的抗氧化剂游离基，从而可使油脂的氧化反应不再传播进行。
It acted on the free radicals, which is formed in fats and oils by oxidation and has to form stable, low-energy free radicals that will stop the propagation of the oxidation in fats and oils.
它作用于油脂自动氧化产生的游离基，形成稳定、低能量的抗氧化剂游离基，从而可使油脂的氧化反应不再传播进行。
It acted on the free radicals, which is formed in fats and oils by oxidation and has to form stable, low-energy free radicals that will stop the propagation of the oxidation in fats and oils.
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