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     THE COUPLED NUMERICAL MODEL FOR WAVE ACTIONS ON STRUCTURES IN THE NEARSHORE ZONE AND ITS APPLICATIONS IN ENGINEERING
     近岸波浪对结构物作用耦合数值模型及其工程应用
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     Cellular Mechanism Underlying the Cardiovascular Actions of Agmatine
     胍丁胺心血管作用的细胞机制
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     The Molecular Mechanism for the Opioid-like Actions of Interferon-alpha
     α干扰素阿片样作用的分子机制
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     Mechanisms of Actions of Protease-activated Receptors 1 and 4 in Platelet Activation
     凝血酶受体PAR1与PAR4在血小板活化中的作用机制
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     A Study on Spinal Actions of Intravenous Anesthetics
     静脉麻醉剂脊髓作用的研究
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  行为
     Research on the Innovation Actions and Venturing Mechanism in Hi-tech Enterprises
     高技术企业创新行为与创业发展机制研究
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     HIGH STRAIN CYCLE HARDENING AND SOFTENING ACTIONS OF V, Ti MICROALLOYED STEELS AND THEIR MICRO-MECHANISM
     钒钛微合金钢高应变循环硬化软化行为及其微观机制
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     Preventive Actions &Health
     预防行为与健康
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     Conclusions The differences in the actions with VP3-related proteins in tumor cells and normal cells correspond to the biological actions of VP3 in different cells.
     结论肿瘤细胞HepG2及正常细胞L-02中,与VP3作用蛋白的差异与其在不同细胞中的生物学行为相对应。
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     Furthermore,when a node‘s malicious actions are found in P2P networks,the malicious nodes would be revoked out from P2P networks.
     此外,该方案还具有当节点进入P2P网络后,如有恶意行为,网络能剔除这些恶意节点等特性。
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  行动
     Establishing perfect market system and market order needs self-conscious actions, removing market segmentation and executive monopoly.
     建立完善的市场体系和市场秩序需要自觉的行动,要根据市场经济体制建设的要求打破市场分割和行政垄断,自觉地建立市场秩序,而不能让市场竞争机制充分发挥作用来自发地形成市场秩序。
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     Theoretical analysis shows that the positive relationship between sustained competitive advantages and IT capability composed of IT and other organizational resources is mediated by competitive actions.
     理论分析表明,IT与其他组织资源相互融合产生的企业IT能力与持续竞争优势之间存在正相关关系,而竞争行动使这种关系的中介变量。
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     Expected Value of Sampling Information for Linear Decision Problem on Two Actions under the Be-B Model
     (Be-B)模型下二行动线性决策问题的抽样信息期望值
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     Expected Value of Sampling Information for Linear Decision Problem on Two Actions under the IGa-Exp Model
     (IGa-Exp)模型下二行动线性决策问题的抽样信息期望值
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     The paper used game theory to analyze the structural transformation of human actions which were the basic unit of society, then explained changing of knowledgeand education in the different societies - from some aspects such as content、form、 effect and the production mechanism of knowledge, the aim、 knowledge、 and the organization of education.
     本文以博弈论分析工具分析了社会基本单元——行动——的结构性变化,以之为基础提供了关于在不同类型社会中知识的内容、形态、作用以及生产与增长机制变迁的解释,并研究了在社会结构转型中、知识的变迁中教育目的、教育中的知识、以及教育组织形态的变迁。
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  动作
     Dissection actions(337±86)times and operative errors(10%) in group A were less than those in group B(389±94) times,25%.
     A组解剖动作次数(337±86)次和操作失误率(10%)少于B组(389±94)次,(25%)。
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     Analysis on Actions of Automatic safety Equipments in "5·12"Accident
     在“5·12”事故中安全自动装置动作行为的分析
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     Analysis of the Causes of Non-full Phase Actions of 220kV Switch of Xiaolangdi Hydropower Station
     小浪底水电站220kV开关非全相动作原因浅析
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     The formulas "又VP1又VP2","连VP1带VP2" and " 一边VP1一边VP2"can all be used to connect two or more actions,but the const ructions formed by different formulas are different both in meaning and grammati cal function.
     "又VP1又VP2"、"连VP1带VP2"、"一边VP1一边VP2"三种格式都能将两个动作连接起来,但在表义和语法功能上存在明显差别。
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     According to analysis on a typical failure of a 500 kV SF6 insulated current transformer the paper illustrates the failure cause, protective actions under the failure and existing problems.
     通过对1台500 kV SF_6绝缘电流互感器一次典型故障的分析,阐述其故障原因,在该故障情况下保护动作行为和存在的问题。
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      actions
    Reductive group actions on affine quadrics with 1-dimensional quotient: Linearization when a linear model exists
          
    We study reductive group actions on complex affine quadrics.
          
    Methods are developed for the calssification of homogeneous Riemannian hypersurfaces and the classification of linear transitive reductive algebraic group actions on pseudo-Riemannian hypersurfaces.
          
    We study Edidin and Graham's equivariant Chow groups in the case of torus actions.
          
    We apply these results to intersection theory on varieties with group actions, especially to Schubert calculus and its generalizations.
          
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    In a previous paper,(1) a method for solving composite beams jointed by bolts by means of equivalent continous beams is suggested. This result is based on the following assumptions: 1. All beams composing the composite beam have the same deflec non at the point where bolt is used. 2. The actions of bolts are considered as concentrated forces applied on the beams at the points where bolts are used. 8. The effect of torsion caused by the external load which is not ap plied at the shear center of the whole...

    In a previous paper,(1) a method for solving composite beams jointed by bolts by means of equivalent continous beams is suggested. This result is based on the following assumptions: 1. All beams composing the composite beam have the same deflec non at the point where bolt is used. 2. The actions of bolts are considered as concentrated forces applied on the beams at the points where bolts are used. 8. The effect of torsion caused by the external load which is not ap plied at the shear center of the whole cross-section of the composite beam is neglected. 4. The friction between the beams is neglected. 5. The weakening of the cross sections of the beams due to the bolt holes is neglected. In order to examine the correctness of these assumptions the results of a group of tests are given. The results of tests show that all assumptions except the third are well agree with the practical condition. As to the third assumption, the problem will be further studied.

    作者曾在前文(1)中提供一种应用相当连续樑来解决螺栓连结的组合樑的简便方法。 此结果基于下列诸假设(除弯曲基本假设以外)。 1.组成组合樑之各樑在螺栓处有相同之挠曲。 2.螺栓的作用视为施加在各樑上螺栓处之集中力。 3.由于外加载荷未作用在组合樑整个截面之弯曲中心而引起之扭转影响略去不 计。 4.诸樑间之摩擦力略去不计。 5.诸樑由于螺栓孔而引起之截面削弱略去不计。  为了检查这些假设与实际问题符合之情况,作者进行了一系列实验。 实验结果指出除了第三假设外所有假设均与实际情况很好符合,关于第三假设的问题尚待进一步研究。

    The main difficulty of the one-electron theory of optical activity lies in the calculation of the so-called vicinal actions. This may be overcome, as suggested in the present investiga- tion by assuming that the vicinal actions are due to the interactions of various chemical bonds in the molecule with the chromophoric electron. For the calculation of these interactions the charge distribution of a single covalent bond is assumed to consist of two nuclei, each of unit positive charge, separated by...

    The main difficulty of the one-electron theory of optical activity lies in the calculation of the so-called vicinal actions. This may be overcome, as suggested in the present investiga- tion by assuming that the vicinal actions are due to the interactions of various chemical bonds in the molecule with the chromophoric electron. For the calculation of these interactions the charge distribution of a single covalent bond is assumed to consist of two nuclei, each of unit positive charge, separated by the bond distance and two electrons with opposite spins and a spherically symmetrical orbital eigenfunction represented by (?) where r is the distance measured from a certain point on the bond axis and near the center of the bond. The location of this point is so determined that the model will give the proper dipole moment of the bond. The exponent α, which determines the extent of diffusivity of the electron cloud, is obtained by an approximate variational treatment. The quadruple moment of this model, calculated for the C-H bond, agrees very well with that estimated by Lassettre and Dean from a study of the potential barrier hindering the internal rotation of the ethane molecule. To test the theory and also to illustrate the procedure which is followed in calculating optical rotations using the new model of vicinal actions, the optical rotations of several methyl derivatives of cyclopentanone have been calculated and the following conclusions have been reached: (1) The proposed model gives rise to optical rotations in agreement with the observed values. (2) The effect of the internal rotation of the methyl group on the molecular rotation [M]_D of 3-methylcyclopentanone is large, [M]_D being +44° and -130° for the cis- trans-conformations, respectively. (3) The observed [M]_D may be regarded as composed of two parts, namely, the contribution from the multipole terms and that from the orbital overlapping. The latter corresponds to the "incomplete screening of atomic nuclei", and has been regarded as the most important vicinal action in earlier calculations. In the present work, it is shown, however, that this effect contributes only a few percent of the total [M]_D, unless the perturbing group is very near to the chromophoric group as it is in the case of 2-methyl- cyclopentanone. The failure of the previous calculations is, therefore, due mainly to the omission of the multipole (especially the quadrupole) terms. (4) The absolute configuration of 3-methylcyclopentanone, indicated by the present calculation, is the opposite of the one suggested by Eyring, since he based on the overlapping contribution alone, which bears a sign opposite to that of the total [M]_D (5) That the observed [M]_D of 2,4,5,5-tetramethylcyclopentanone is considerably smaller than that of 2,4-dimethylcyclopentanone may be due to one or both of the following possibilities: (a) that the conformation of the 2- and 4-methyl groups slightly deviates from the trans-position in the tetra-methyl compound, due to the presence of the two additional methyl groups; (b) that the two additional methyl groups in 5,5-positions are not exactly symmetrical with respect to the ring so that they make contributions to [M]_D.

    本文在量子力學的單電子旋光理論的鄰近作用問題上,作了如下的貢獻: 1.指出旋光度應由分子中各化學鍵,而不是分子中各原子(如像前人所假定的)對於生色團電子的微擾作用來計算,兩者的主要不同點在於是否考慮鍵的多極矩。 2.建議在旋光度的計算中,共價單鍵可以看作是由兩個處於鍵端的正電荷和一個以單中心狀態函數,表示出來的電子雲所組成。根據這個假定計算了環戊酮的甲基衍生物的旋光度,其結果與實驗值甚爲一致(詳見結果討論)。 3.計算結果證明甲基的內旋轉對於旋光度的影響很大,例如順式和反式構型的3-甲基環戊酮的旋光度,應分別為+44°和-30°。 4.指定了3-甲基環戊酮的絕對構型,其結果Eyring所指定者相反。

    α-, β-, and γ-Dichroine—3 isomeric alkaloids from the Chinese antimalarial herb "Chang Shan" (Dichroa febrifuga, Lour.), were investigated on anesthetized dogs for their effects on blood pressure, respiration, splenic and kidney volumes, and the activities of the heart, uterus and small intestines. Parallel observations were also made on isolated hearts, uteri and small intestines from several other species of animals. In the doses used the pharmacological actions of these alkaloids appeared to be identical...

    α-, β-, and γ-Dichroine—3 isomeric alkaloids from the Chinese antimalarial herb "Chang Shan" (Dichroa febrifuga, Lour.), were investigated on anesthetized dogs for their effects on blood pressure, respiration, splenic and kidney volumes, and the activities of the heart, uterus and small intestines. Parallel observations were also made on isolated hearts, uteri and small intestines from several other species of animals. In the doses used the pharmacological actions of these alkaloids appeared to be identical qualitatively, and neither was there any marked quantitative difference. The lack of marked quantitative difference in their general pharmacological behavior is thus in strong contrast to their antimalarial activities, which vary tremendously from one another. These alkaloids, 2.5—10mg/kg given intravenously, produced a fall of blood pressure in all anesthetized dogs, usually associated with depressed cardiac contractions, and frequently an increase of the splenic and kidney volumes, while the respiration was not significantly affected. On the perfused rabbit heart, 0.2—2mg of them injected into the side tube of the cannula, always depressed the contractions, but in some cases slight augmentation preceeded the depression. The isolated frog heart was usually stimulated by the low concentrations of the alkaloidsand always depressed by their higher concentrations. In anesthetized dogs, the effects of these alkaloids on small intestines were inconsistent, stimulating in some cases and depressing in other cases; while the uterus was more commonly stimulated by them. In the concentrations used, these alkaloids always depressed the rabbit and dog intestines in vitro, but their effects on the isolated ileum of the guinea pig were dependant on the concentration, depressant in low concentrations, but usually stimulating or stimulating after transient depression in high concentrations. Their effects on the isolated uteri were still more complicated. On the rabbit nongravid uterus, their effects were in general not marked, in some cases there was slight stimulation and in other cases stimulation was preceeded by slight depression; but the gravid uterus was always stimulated by them. The nongravid uterus of the guinea pig was not significantly affected. As for the rat uterus, these alkaloids usually depressed the non-gravid and stimulated the gravid ones. α-, and β-Dichroine were also tested on the isolated non-gravid uterus of a monkey; only stimulation was observed.

    (一)本文報告常山鹼甲、乙、丙對於麻醉犬血壓、呼吸、聛腎容積、心收縮、在位小 腸與在位子宮的作用,並佐以它們對於離體心臟、小腸和子宮的作用觀察。三種常山鹼的藥理作用,在所用劑量時並無質的不同,亦無明顯的量的不同。和它們抗瘧作用的強弱懸殊,形成強烈的對此。 (二)對於麻醉犬,靜脈內注入2.5—10毫克/千克後,三種常山鹼都能降低血壓,呼吸無顯著變化。脾容積與腎容積多增加,心收縮則呈現振幅減小。 (三)離體兔心灌注時,從導管的側枝內注入0.2—2毫克常山鹼,能引起顯著的抑制,有時在抑制前可見輕微的興奮作用。對於離體蛙心,低濃度多產生興奮,高濃度則抑制之。 (四)對於麻醉犬的在位小腸,三種常山鹼在上述劑量時作用並不一致,有時興奮之,有時抑制之,對於子宮則多興奮之。 (五)對於離體兔腸與犬腸,常山鹼在所試劑量時,恆引起抑制。對於豚鼠空腸,則低濃度時抑制,高濃度時往往興奮之,或在短暫的抑制後繼以興奮。 (六)對於離體子宮的作用更為複雜,對家兔未孕子宮,一般作用不著,有時輕微興奮之,有時在興奮前略呈抑制。對於有孕子宮則均興奮之。豚鼠未孕子宮對常山鹼的效應一般不顯著。對大白鼠未孕子宮多抑制之,對其有孕子宮則多呈興奮作用。曾...

    (一)本文報告常山鹼甲、乙、丙對於麻醉犬血壓、呼吸、聛腎容積、心收縮、在位小 腸與在位子宮的作用,並佐以它們對於離體心臟、小腸和子宮的作用觀察。三種常山鹼的藥理作用,在所用劑量時並無質的不同,亦無明顯的量的不同。和它們抗瘧作用的強弱懸殊,形成強烈的對此。 (二)對於麻醉犬,靜脈內注入2.5—10毫克/千克後,三種常山鹼都能降低血壓,呼吸無顯著變化。脾容積與腎容積多增加,心收縮則呈現振幅減小。 (三)離體兔心灌注時,從導管的側枝內注入0.2—2毫克常山鹼,能引起顯著的抑制,有時在抑制前可見輕微的興奮作用。對於離體蛙心,低濃度多產生興奮,高濃度則抑制之。 (四)對於麻醉犬的在位小腸,三種常山鹼在上述劑量時作用並不一致,有時興奮之,有時抑制之,對於子宮則多興奮之。 (五)對於離體兔腸與犬腸,常山鹼在所試劑量時,恆引起抑制。對於豚鼠空腸,則低濃度時抑制,高濃度時往往興奮之,或在短暫的抑制後繼以興奮。 (六)對於離體子宮的作用更為複雜,對家兔未孕子宮,一般作用不著,有時輕微興奮之,有時在興奮前略呈抑制。對於有孕子宮則均興奮之。豚鼠未孕子宮對常山鹼的效應一般不顯著。對大白鼠未孕子宮多抑制之,對其有孕子宮則多呈興奮作用。曾試常山鹼甲、乙於一猴的未孕子宫,均有興奮作用。

     
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