实际上，每个老化过程都与我们身体对污染、紫外线辐射、压力、吸烟、酒精和农药作出反应而产生的氧化化合物或自由基相关。
Virtually every ageing process is related to the oxidative compounds or free radicals produced by our body as a reaction to pollution, ultraviolet light, stress, smoking, alcohol and pesticides.
茶对健康的好处大多来自于抗氧化剂——在胡萝卜素、维生素E和维生素C 中也发现了抗氧化剂化合物，它能抑制沿身体血管形成的斑块。
Most of the purported health benefits of tea come from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C that inhibit the formation of plaque along the body's blood vessels.
应特别密切注意氮和二氧化硫的化合物。
Compounds of nitrogen and sulphur dioxide should be particularly closely watched.
这种化合物加热后会排出二氧化碳，产生氧化钙。
Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.
在环氧化反应中，利用价廉、易制备的过氧甲酸以几乎定量的收率得到了环氧化合物。
The use of performic acid, an affordable and easily prepared reagent, in epoxidation led to quantitatively the target epoxide.
例如，环氧化合物可以在割开后修复表面——就像是皮肤割开后愈合那样。
For example, epoxy compounds can heal surfaces if they get cut - in just the same way that a scab forms if skin gets cut.
因此，清除活性氧化合物的抗氧化剂，可能看起来是合理的解决方案。
So antioxidants, which mop up the reactive oxygen compounds, may seem like a logical solution.
这些燃烧过程同样释放化学物质如甲烷、氮氧化合物、挥发性的有机化合物和一氧化碳在光照下反应形成臭氧。
These same processes also release chemicals that combine in sunlight to form ozone: methane, nitrogen oxides, volatile organic compounds, and carbon monoxide.
相对于镍氢的电池，这种物质的实体材质被称为镍氢氧化合物。
For the nickel-metal hydride version of the battery, that material is a substance called nickel oxyhydroxide.
然后，当这些化学物质与氮氧化合物(存在于汽车排放的废气中)发生化学反应时，就会形成臭氧，这会对人类和动物的健康构成更大的威胁。
When the chemicals react with nitrogen oxide--found in pollution from cars--they form ozone, a much bigger health threat to humans and animals.
氮氧化合物。
但是今天由美国人往返mcmansions所排放的碳氧化合物有多少呢？
But what about all the carbon dioxide being spewed out today by Americans commuting to McMansions?
有毒的matagenic和致癌物质PAH二醇环氧化合物均来源于多环芳香烃(PAH)，它是导致大多数肺癌的罪魁祸首。
Toxic matagenic and carcinogenic PAH diol epoxides can be derived from PAHS, which are responsible for most cases of lung cancer.
这些物质大多数是含氧化合物。
氮氧化合物进入肺泡后，能形成亚硝酸和硝酸，对肺组织产生剧烈的刺激作用，增加肺毛细管的通透性，最后造成肺气肿。
Alveolar oxygen into nitrogen compounds, lead to the formation of nitrite and nitrate, a sharp stimulus to the lung tissue, increased pulmonary capillary permeability, leading to emphysema.
甲醇是C1化学的重要产品，其深加工产品涉及烯烃、有机酸、各种含氧化合物、二甲醚和甲醛等。
Methanol is an important product from C1 chemistry and its derived products include ethylene, organic acids, oxygen containing compounds, dimethyl ether, formaldehyde, etc.
提出了估算含氧化合物的正辛醇/水分配系数的基团贡献法———GC-K3基团贡献法。
New method named GC-K3 group contribution method for the esxtimation of the octanol-water of oxygenous compounds is presented.
在实验过程中筛选出几种酚类化合物和叔丁基含氧化合物等作为汽油抗爆添加剂。
Some of phenol compound and oxygen containing compounds with tertiary butyl group were screened to use as gasoline antiknock additives.
环氧化合物改性后脱细胞真皮基质的拉伸强度大幅度提高，收缩温度也相应提高。
And the acellular dermal matrix modified by epoxy compound is improved a lot in tensile strength and a certain increase in shrinkage temperature.
目的探讨环氧化合物交联牛颈静脉带瓣管道的外观形态，组织稳定性及流体物理性能的特征。
ObjectiveTo investigate the morphologic and mechanical properties of bovine jugular venous con- duit with valves fixed with polyepoxy compound.
英国同意减少发电站氮氧化合物的排放量。
Britain agreed to cut emissions of nitrogen oxide from power stations.
在石油化学加工中，原料气中含氧化合物的含量有严格的规定。
For strict quality control, a limit is set on the content of oxygenated compounds in the feed stocks of petrochemical processing.
环氧化合物的发现，整个机构-例如，在中枢神经系统和胃。
Cyclo oxygenase compounds are found throughout the body - for example, in the nervous system and stomach.
特别对石油工业来说，此术语是指加入燃料以减少发动机一氧化碳排放物的含氧化合物，例如醚类和醇类。
Specifically for the petroleum industry, this term refers to oxygen containing compounds, such as ethers and alcohols, added to fuels to reduce carbon monoxide in the engine exhausts.
化合物中氧空位的形成有利于阴极的电子发射，氧缺位增强了镧氧化合物的半导体性。
The formation of oxygen vacancies enhances semiconductor property of La-O compound and improves greatly the performance of cathodes.
一旦与挥发性有机化合物结合，氮氧化合物就会在低压闷热天气造成烟雾或地面臭氧污染——导致人类呼吸系统问题。
When combined with volatile organic compounds, NOx can create smog or ground-level ozone pollution in hot stagnant weather - causing respiratory problems in humans.
以有机含氧化合物丁酸和丁醇为合成油品的模型化合物，在连续流动固定床反应器中考察了催化剂的加氢脱氧性能。
The performance of the catalysts for hydrodeoxygenation of model organic compounds, butyric acid and butanol, was investigated in a continuous fixed bed reactor.
综合上述分析结果，考察了在用油随行车里程的增加氧化衰败的规律，并得到在使用过程中含氧化合物迅速增加的拐点。
By combining all the analysis results, the pattern of oxidative degradation of engine oil during road test was investigated, and the breakpoint of rapid increase of oxidation products was obtained.
综合上述分析结果，考察了在用油随行车里程的增加氧化衰败的规律，并得到在使用过程中含氧化合物迅速增加的拐点。
By combining all the analysis results, the pattern of oxidative degradation of engine oil during road test was investigated, and the breakpoint of rapid increase of oxidation products was obtained.
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