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chemistry studies
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  化学研究
     SOLUTION CHEMISTRY STUDIES ON FLOTATION OF MALACHITE AND SMITHSONITE
     孔雀石/菱锌矿浮选溶液化学研究
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     Computational Chemistry Studies of Hydrophobic Modification on Nano-Meter Sized Silica Particles
     纳米二氧化硅疏水改性的计算化学研究
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     The research on the spectrum of the radical lays the foundation of the whole chemistry studies on radicals.
     自由基光谱研究是整个自由基化学研究的基础。
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     Pesticide chemistry studies organic chemistry problems which concernes with the frame ,synthesis, analysis , structure relation and degradation metabolization of pesticides .
     农药化学研究的是有关农药的设计、合成、分析、构效关系、降解代谢等有关的有机化学问题。
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     The significance of metal methylation in environmental chemistry studies is also discussed.
     在前人工作的基础上 ,本文对甲基化供体以及甲基化反应的机理进行了论述 ,并对其在环境化学研究中的意义进行了讨论
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  “chemistry studies”译为未确定词的双语例句
     Quantum Chemistry Studies of Thermal Decomposition Mechanism on 1,1′-DM-5,5′-AT and 2,2′-DM-5,5′-AT
     1,1′-DM-5,5′-AT和2,2′-DM-5,5′-AT热分解机理的量子化学研究
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     Quantum Chemistry Studies on the Heteropoly Bluesof Molybdosilic Series with α-Keggin Structure
     Quantum Chemistry Studies on the Heteropoly Blues of Molybdosilic Series with α-Keggin Structure
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     Quantum Chemistry Studies on Structure and Thermal Stability of 1,1′-DM-5,5′-AT and 2,2′-DM-5,5′-AT
     1,1′-DM-5,5′-AT和2,2′-DM-5,5′-AT结构及其热稳定性的量子化学研究
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     QUANTUM CHEMISTRY STUDIES OF BORANES CLUSTER COMPOUND——Ⅰ. A Theortical study on the Bonding Nature of Chemical Bond in Boron Hydrides BH_3.B_2H_6 and B_3H_9
     硼烷原子簇化合物的量子化学研究 Ⅰ.BH_3、B_2H_6和B_3H_9中化学成键性质的理论研究
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     Calculations on dinitramines, O_2NHN-(CH)_n-NHNO_2n=1(Ⅰ), n=2(Ⅱ), n=3(Ⅲ), n=4(Ⅳ), were carried out applying methods of quantum chemistry studies.
     本文用量子化学方法对二元硝胺系列化合物O_2NHN-(CH_2)_n-NHNO_2(其中n=1(Ⅰ),n=2(Ⅱ),n=3(Ⅲ),n=4(Ⅳ))进行了计算。
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  相似匹配句对
     STUDIES ON THE CHEMISTRY OF PHOTOCARCINQRIN
     癌光啉的化学研究
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     STUDIES ON THE CHEMISTRY OF GOUQI POLYSACCHARIDES
     枸杞多糖的化学研究
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     Studies on N.
     对北冰洋西部N.
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     SOLITONS IN CHEMISTRY
     化学中的孤子
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     Stress Chemistry
     应力化学
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  chemistry studies
Detailed fractographic analyses and surface chemistry studies were carried out to identify the micromechanisms and to quantify the chemical interactions for corrosion fatigue crack growth in this alloy.
      
Parallel fracture mechanics and surface chemistry studies were carried out to develop further understanding of environment assisted subcritical crack growth in high strength steels.
      
Fracture mechanics and surface chemistry studies were carried out to develop further understanding of the influence of water vapor on fatigue crack growth in aluminum alloys.
      
Fracture mechanics and surface chemistry studies of fatigue crack growth in an aluminum alloy
      
Fracture mechanics and surface chemistry studies of subcritical crack growth in AISI 4340 steel
      
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This paper is an introduction of the theoretical basis of DV-Xa method and Diophantus integral model;According to these principles,with respect to the field of Quantum chemical HFS calculation,we have been transfer-edited microcomputer program for Quantum Chemistry studies in next part(2) of this paper.

本文阐述分离变分法Ⅹα方法,这是量子化学中关于求解HFS方程的一种近代计算方法,我们为此移植并编制了DV-Ⅹα方法的微机计算程序,对稀土化合物结构进行量子化学研究结果在第二部分

Calculations on dinitramines, O_2NHN-(CH)_n-NHNO_2n=1(Ⅰ), n=2(Ⅱ), n=3(Ⅲ), n=4(Ⅳ), were carried out applying methods of quantum chemistry studies. In the paper is studied the mechanism of hydrolysis reaction in acidic medium. Interaction between HOMO and LUMO for protonated dinitramines was investigated according to the frontier MO theory. The reaction path is calculated by constructing reaction coordinates. The results show that the reaction path proceeds according to Sn2. Protonated dinitramine...

Calculations on dinitramines, O_2NHN-(CH)_n-NHNO_2n=1(Ⅰ), n=2(Ⅱ), n=3(Ⅲ), n=4(Ⅳ), were carried out applying methods of quantum chemistry studies. In the paper is studied the mechanism of hydrolysis reaction in acidic medium. Interaction between HOMO and LUMO for protonated dinitramines was investigated according to the frontier MO theory. The reaction path is calculated by constructing reaction coordinates. The results show that the reaction path proceeds according to Sn2. Protonated dinitramine is first formed in the acidic medium, then water as the nucleophilie agent, substitutes nitramine and protonated alcohol and nitramine are formed. In this reaction, the latter is the rate-determining-step of the reaction.It is found also that there is correlation between the superdeloalization of the hydrogen atom(■) and acidity of these compounds.

本文用量子化学方法对二元硝胺系列化合物O_2NHN-(CH_2)_n-NHNO_2(其中n=1(Ⅰ),n=2(Ⅱ),n=3(Ⅲ),n=4(Ⅳ))进行了计算。研究了它们在酸性介质中水解反应机理。根据前线轨道理论,考察了质子化二硝胺的前线轨道作用,设定反应坐标,计算了反应通道。提出了二元硝胺在酸性介质中的分解是按Sn2反应历程进行。首先硝胺质子化,然后水分子进攻与硝胺相连的碳原子,发生亲核取代反应。其中后者是速度的决定步骤。还发现这类化合物胺上氢原子可极化率P_H~(uno)与酸性离解常数Pk_1存在很好相关性。

Using the principle of geo-chemistry study the present state of water and soil loss on the upper reaches of Wanshui River in Dabieshan Moun- tains in Yuexi County in western Anhui Province.Rate of soil formation is less than the rate of soil loss,the river water not only transpots quarte but also carries orthoclase and chemical weathering solid residual of Quarternary.The study area is a serious soil and water loss place.

利用地球化学原理,探索了大别山区安徽省岳西县皖水上游水土流失的状况。该地区土壤侵蚀速率大于成土物质形成速率,河水不仅冲走了难进行化学风化的古英,还带走了含植物营养元素钾的正长石以及第四纪风化戏留物,水土流失极为严重。

 
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