氧气在细胞呼吸的新陈代谢过程中是必不可少的，它能使细胞有效地从有机食物中获取能量。
Oxygen is essential for the metabolic process known as cell respiration that allows cells to efficiently harvest energy from organic food.
新陈代谢是宇宙间普遍的永远不可抵抗的规律。
The supersession of the old by the new is a general, eternal and inviolable law of the universe.
然而，考虑到大型动物先天的新陈代谢效率，其贡献不可低估。
However, their contributions cannot be underestimated, considering the inherent metabolic efficiency of the large animals.
此外，吸烟与抗胰岛素性及引发代谢综合症的一系列问题都密不可分。
Additionally, smoking is linked to insulin resistance and the cluster of problems that collectively define metabolic syndrome.
尼古尔逊博士之所以对此感兴趣, 是因为胆碱对脂肪的新陈代谢必不可少,但是狗却不能对此综合利用.
The reason for Dr Nicholson's interest was that choline is essential for metabolising fat, but dogs cannot synthesise it themselves.
牛奶中的钙最易被人体吸收，是脑代谢不可缺少的重要物质。
Calcium in milk is the most easy to absorb by people, and it is an important and indispensable material in brain metabolism.
间质细胞增殖和凋亡失衡及细胞间质代谢失调也是造成肾小管间质纤维化的两个不可缺少的原因。
The imbalance of interstitial cell proliferation and apoptosis and the metabolic disorder of intercellular substance, are two essential factors for renal tubulointerstitial fibrosis.
药物代谢研究是新药开发中不可缺少的一项。
Metabolic study is an indispensable part to the development of new drugs.
剩余的1 ％存在于人体组织和液体的地方是必不可少的细胞代谢，肌肉收缩和神经冲动传递。
The remaining 1% is present in body tissues and fluids where it is essential for cell metabolism, muscle contraction and nerve impulse transmission.
铜是生物体不可缺少的一种元素，在细胞内把铜转运到含铜的蛋白质是细胞正常代谢的基本要求。
Copper is an essential element for living organism, and transporting copper to copper -dependent proteins is a basic requirement for normal cellular metabolism.
在炎热季节，大型动物的降温慢于较小的动物，因此“大型动物不可能有像我们一样的高代谢率，”他说，“否则它们会熟食自己”。
Large animals cool more slowly than smaller ones in hot climates, so "The big animals could not possibly have had a high metabolic rate like we do, " he says, "or they would have cooked themselves.
上述特点和其代谢功能有着密不可分的关系，冷型小麦在叶片功能期、丙二醛含量和净光合速率等方面均较优越。
These characteristics of cold typical wheat have a close relation to the metabolic function, which is more excellent in functional period of leaves, MDA content and net photosynthetic rate, etc.
从酱油生产原料，糖、脂肪、氨基酸的分解与合成代谢分析认为天然酿造酱油中不可能存在3—MCPD。
By analysis of production raw material, sugar, fat, compose and catabolism of amino acid, and thought there was probably no 3-mcpd in the natural brew sauce.
硒又是人体必需的重要微量元素之一，同样也是其他动、植物新陈代谢必不可少的生命元素。
It is also the necessities of body and one of the most important microelement, and the indispensable life element of the metabolism of a ll creatures.
这种差异可能是由遗传、环境、疾病状态或饮食结构等诸多因素引起的。其中基因(遗传)多态性是导致药物代谢个体差异的较为常见且不可调控的因素。
The individual variation may be caused by many factors, such as genetics, environment, disease stage and diet, etc, among which genetic polymorphism is a common and uncontrollable factor.
摘要本试验旨在研究苜蓿草粉来源的不可溶性纤维对生长猪结肠微生物区系及其发酵代谢产物的影响。
Abstract: the present study aimed to investigate the effects of insoluble dietary fiber from alfalfa meal on colonic microbiota and its fermentation metabolites in growing pigs.
水是生命代谢不可代替的物质，饮水健康已越来越受到普遍关注。
Water is the substance irreplaceable of metabolism of life. The drinking water and the health get more and more concerned.
铁是一种微量营养素，许多代谢反应必不可少的组成成分。
Iron is a micronutrient that is an essential component that drives many metabolic reactions.
摘要：本试验旨在研究苜蓿草粉来源的不可溶性纤维对生长猪结肠微生物区系及其发酵代谢产物的影响。
Abstract: the present study aimed to investigate the effects of insoluble dietary fiber from alfalfa meal on colonic microbiota and its fermentation metabolites in growing pigs.
摘要：本试验旨在研究苜蓿草粉来源的不可溶性纤维对生长猪结肠微生物区系及其发酵代谢产物的影响。
Abstract: the present study aimed to investigate the effects of insoluble dietary fiber from alfalfa meal on colonic microbiota and its fermentation metabolites in growing pigs.
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