This is due to the chain transfer reaction between the active hydrogen and the active centers of the catalyst.
这是因为在活泼氢和催化剂活性中心之间有链转移反应发生。
Dyeing assistant RG, a cationic compound, has at least two reactive groups which are sensitive to active hydrogen.
助染剂RG是一种阳荷性的化合物。它至少含有两个能与活泼氢发生作用的活性基因。
They can also constitute two-component adhesives with aqueous polymers containing active hydrogen, and are dispersed in aqueous main agent before use.
或者与含活泼氢的水性聚合物组成双组分胶黏剂，使用前分散于水性主剂中。
The number of active hydrogen atoms attached to nitrogen atom of different classes of amine determine their effectiveness in extraction of metals by solvation.
根据与氮相连结的活性氢原子的多寡与有无，讨论了伯、仲、叔胺类溶剂化能力的强弱。
The active hydrogen in the compound (6) might take negative effect in some reactions and was substituted by a methyl to get compound (7) which was a new chiral guanidine.
化合物(6)上与氮相连的活泼氢原子，可能对某些反应有不利影响，故用碘甲烷对其进行甲基取代，得到了新的手性胍—化合物(7)，并做了表征。
The Terent 'ev method for the determination of active hydrogen has been applied to various kinds of organic compounds. It is found that this method can be widely applicable.
我们用切林齐夫测定活泼氢方法测定了许多类的有机化合物，并且证明这个简便的方法是可被广泛应用的。
The crystal transforming mechanism of calcium sulfonate grease was discussed, and the effect of different active hydrogen substances as transforming agents on crystal transform was analyzed.
探讨了磺酸钙基脂晶型转化的反应机理，分析了不同活性氢物质作转化剂对晶型转化的影响。
They are able to show that active peroxiredoxin 1, Prx1, an enzyme that breaks down harmful hydrogen peroxide in the cells, is required for caloric restriction to work effectively.
他们已经证明出活性过氧化物酶1（prx1），一种能够将细胞内有害的过氧化氢分解的酶类，正是此正面效应的所需酶类。
Last year, the team confirmed that hydrogen removes active oxygen from water and can halve brain damage from strokes.
去年，这个研究小组证明了氢能消除水中活性氧并能使中风对脑的损伤减轻一半。
The hydrogen production from hyacinth inoculated with preheated anaerobic active sludge by fermentation was studied.
采用加热预处理的厌氧活性污泥为接种物，对凤眼莲进行发酵产氢研究。
The influence of temperature, hydrogen pressure and contents of active component in catalysts are discussed.
讨论了温度、氢气压力、催化剂活性组分含量对苯部分加氢制备环己烯反应的影响。
To explore the role of the bridged N atom for a possible proton transfer in the active site of hydrogenase, we tried to introduce a hydrogen bond into a couple of designed molecules.
为研究氢化酶活性中心氮桥结构中氮原子是否起到质子摆渡的作用，设计了在分子内引入氢键的结构。
The results show that the reactivity and the amount of hydrogen absorption in the HD process are related to the surface activity of the bulk alloy so that fresh active bulk has higher efficiency.
结果表明氢爆碎的吸氢速度和吸氢量与钕铁硼合金铸锭表面的活性有关，表面新鲜、活性大的合金铸锭氢爆碎的时间短、效率高。
So the study of hydrogen embrittlement is still Avery important and very active topic in metal science.
因此，氢脆问题的研究，仍然是金属材料科学领域中一个很重要而又是非常活跃的课题。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.
本文用自由基捕捉剂与esr相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
MS show that hydrogen or H·is the main active substance in the degradation of pollutants on the carbon nanotubes.
质谱的分析表明，碳纳米管上污染物降解的主要活性物质为氢气或H…
This paper studies the possibility of using nickel-nickel sulfide composite coating obtained by electrodeposition as the active cathode material for hydrogen evolution reaction in alkaline solution.
对用电沉积法获得镍-硫化镍复合沉积层作碱性溶液中析氢活性阴极材料的可能性进行了研究。
The testing methods for element sulfur, hydrogen sulfide, mercaptan sulfur, bisulfide, corrosive sulfide, total active sulfur and single active sulfide were reviewed.
对原油及其馏分油中元素硫、硫化氢、硫醇硫、二硫化物、腐蚀性硫、总活性硫以及单体活性硫化合物的分析方法进行了综述。
This provides a novel approach to tune the catalytic behaviors of metal catalysts for the involving hydrogen reactions, which are sensitive to the electronic state of the active components.
这给我们一个启示，可以利用碳纳米管的限域效应改善或者提高涉氢的多相催化反应的催化性能，因为这些催化反应中低价态的金属是反应的活性物种。
Pulsed high voltage gas-liquid hybrid discharge could combine gas phase and liquid phase discharge to produce plenty of active species, such as ozone, hydrogen peroxide, hydroxyl radical etc.
高压脉冲气液混合放电利用气相和液相共同放电产生臭氧、双氧水、羟基自由基等活性物质，提高污染物去除效率和电源能量利用率。
Reducing content of hydrogen effect of fluoride, carbonate, active chide and rare earth oxide in weld by self-shielded flux-cored wire with CaF2-TiO2 MgO slag system is investigated.
探讨氟化物、大理石、高价氧化物和稀土氧化物在氟钙钛渣系自保护药芯焊丝中的降氢机理。
One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.
活性亚甲基上的一个氢原子是被环氧基所取代的。
It has also been proved through hydrogen peroxide quantitative analy. sis that the function in Clearing free radical is mainly non—enzyme chemically active in nature.
作为一种良好的中药抗氧化剂，推测治疗慢性肾功能不全的作用机理之一，与清除自由基或减轻自由基引起的肾损害有关。
It has also been proved through hydrogen peroxide quantitative analy. sis that the function in Clearing free radical is mainly non—enzyme chemically active in nature.
作为一种良好的中药抗氧化剂，推测治疗慢性肾功能不全的作用机理之一，与清除自由基或减轻自由基引起的肾损害有关。
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