多吃水果和蔬菜:由于含有很多光合作用产物和具有生物活性的抗氧化剂,蔬菜水果可有效防止癌变。
Eat more fruits and vegetables. They'll reduce your risk of many forms of cancer because of all the phytochemicals and antioxidants they contain.
这些浮游生物的光合作用量占到海洋中生物光合作用量的40%,因此,这样的伽马射线爆可能会对地球的二氧化碳水平产生严重影响。
These organisms account for up to 40% of the ocean's photosynthesis, so such an event could have a serious impact on Earth's carbon dioxide levels.
在海洋上层200米左右的水体中,有些死亡或排泄物质在微生物的作用下转变为二氧化碳,并重新进入大气层。
In the top 200 metres or so of the sea, some dead or faecal matter is turned back into CO2 by microbes and may then re-enter the atmosphere.
海洋中的浮游生物消耗了大量的二氧化碳,大约占整个生物圈光合作用量的20%,而这些基本上是被一种浮游生物,原绿球藻消耗的。
Carbon dioxide is consumed in great quantity by ocean-based plankton with just one species, Prochlorococcus marinus, accounting for 20% of the entire biosphere's photosynthesis.
大约25亿年前,生物界出现了光合作用——把光照、二氧化碳和水转化成糖的能力。
About 2.5 billion years ago, the newest fad in organisms was photosynthesis — the ability to to turn sunlight, carbon dioxide (CO2) and water into sugar.
在海底的浮游生物必须被保护起来以免遭氧化作用。
The dead plankton on the bottom must be preserved from oxidation.
光合作用的生物在还原空气里的二氧化碳的同时也消耗氧气。
While photosynthetic life reduced the carbon dioxide content of the atmosphere, it also started to produce oxygen.
本研究采用体外实验的方法,以过氧化氢(H_2O_2)为氧化损伤剂,从细胞和分子生物学水平,对仙草多糖的抗氧化功能进行研究,并初步探讨了其作用机理。
In this research, we used H2O2 as oxidative damaging agent to observe the antioxidative effect of PMPH in vitro, and its action mechanism was also preliminarily explored.
通过灭活试验和细菌计数等试验验证该滤柱在除铁中,生物氧化起主要作用。
The inactivation experiment, bacteria counting experiment and some other experiments indicated that biological oxidation had a significant effect on iron-removal in the said filter candle.
悬浮填料是在生物接触氧化法处理污水中起着重要作用的水环境治理材料,已引起国内环境材料研究人员的广泛关注。
The suspended packing is an important material for water environment control, because it plays key role in biological contact oxidation.
试验结果表明,经强化LAS降解作用的二段生物接触氧化系统LAS去除率可由65%提高到80%以上。
The results show that removal rate of LAS can be increased from 65 % to 80 % through the two-step enhanced biological contact oxidation system.
半胱胺具有多种生物学功能,如耗竭生长抑素,影响糖、蛋白质和脂肪的代谢,抗氧化和氧化作用,提高免疫功能。
Cysteamine had many biological functions, such as, exhauting somatostatin, modulating metabolism of carbohydrate, protein and fat, anti-oxidation and oxidation and improving immunofunction.
实践证明利用碱解氧化可降低浓废水中的氨氮、磷化物及盐浓度,对保证后续生物处理系统正常运行有重要作用。
The operation results show that the basic oxidation is effect to decrease the contents of ammonia nitrogen, phosphide and salt. This is very favorable to the following biological treatment.
目的:研究断奶小鼠在受到微生物刺激时,日粮核苷酸的抗氧化作用,并探讨其可能机制。
Objective: To study the effects of dietary nucleotides on anti-oxidation and its mechanism on newly weaned mice under stimulation.
活性氧在生物大分子如DNA、蛋白质等氧化性损伤中起着非常重要的作用。
Active oxygen has an important role in the oxidative damage of biomacromolecules for example DNA, protein and so on.
甲烷氧化微生物在调节全球甲烷平衡中起着重要作用。垃圾填埋场覆土具有相当强的甲烷氧化能力。
Methanotrophic microorganisms play an important role in regulating global methane content, and landfill cover soil is proved to have high capacity of methane oxidation.
选择该经活化的含氮化合物以及非氧化杀生物剂的用量以获得协同杀生物作用。
The amount of activated nitrogenous compound and non-oxidizing biocide is selected to result in a synergistic biocidal effect.
文中综述了近年来生物抗氧化剂的研究概况,重点论述在复杂体系中生物抗氧化剂的抗氧化能力及其协同作用。
This article reviews the survey of the studies on biological antioxidants, mainly discusses the antioxidant effect in complex system and their synergistic effects.
衰老的自由基学说认为,自由基及其诱导的脂质过氧化对生物膜的损害作用是衰老发生的主要原因之一。
The free radical theory of aging indicates that the effect of membrane damage produced by free radicals and lipids peroxidation is one of the major reasons of aging.
二氧化碳也可经由活体生物的呼吸作用而产生。
综述漆酶在自然界的分布、化学组成、结构特征、催化氧化作用和生物学功能。
The article review laccase on the distribution in nature, chemical composition, properties of structure, catalytic oxidation and function of biology.
采用间断操作的试验方法,探讨了碳酸锰矿石微生物氧化过程的作用机制。
The action mechanism of microbiological oxidation of rhodochrosite has been investigated by batch operation.
本文主要研究在生长有成熟生物膜的填料上强化LAS生物降解作用,提高生物接触氧化系统的LAS降解能力。
This paper shows the study on the enhanced biodegradation of LAS on filler with mature bio-membrane so as to increase capability of LAS degradation of biological contact oxidation system.
此外,还讨论在成熟和贮存阶段微生物的作用—氨基氧化酶作为起始培养物来控制或减少生物胺的积累。
Moreover, the role of microorganisms with amino oxidase activity as starting cultures to control or reduce the accumulation biogenic amines during ripening and storage of sausages is discussed.
游离二氧化硅致肺组织纤维化机制十分复杂,涉及多种细胞及生物活性物质参与的炎症反应、免疫反应、异物反应、细胞毒作用等。
The mechanism of fibrosis caused by free silica particles involves a lot of cells and reactions including inflammatory reaction, immunological reaction, foreign body reaction and cell toxic action.
方便菌液内的益生菌在肠道内基质中可产生过氧化氢,它对几种潜在的病原微生物有抑制和杀灭作用。
The pro-biotics in convenient germ solution can produce in intestinal matrix hydrogen peroxide, which inhibits and kills several potential pathogenic microorganisms.
方便菌液内的益生菌在肠道内基质中可产生过氧化氢,它对几种潜在的病原微生物有抑制和杀灭作用。
The pro-biotics in convenient germ solution can produce in intestinal matrix hydrogen peroxide, which inhibits and kills several potential pathogenic microorganisms.
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