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driving forces
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  驱动力
     The results show that because of the occurence of β→β′ordering tran-sition within the temperature range,the driving forces ΔG(?) and ΔG(?) increase inversely with decreasing temperature with ΔG~(?)
     结果表明,由于在这温度范围内存在β→β′有序相变,因而相变驱动力ΔG~(β′→α′)及ΔG~(β′→β_1′+α)随温度下降反而增大,且ΔG~(β′→α′)>0,ΔG~(β′→β_1′+α)<0;
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     The stacking-fault energy (SFE) at M_s temperature in Co, Co-14Ni and Co-3.5Cu alloys are given and the nucleation mechanism of ε-martensite is discussedwith respect to their driving forces.
     求出Co,Co-14Ni和Co-3.5Cu合金在M_s时的层错能,以它们的相变驱动力讨论ε马氏体的形核机制.
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     In order to study land use and cover change (LUCC) and their driving forces in Qiemo Oasis in Xinjiang dry region, authors did the field investigation by using remote sensing of JERS-1 OVN data (1993) and LANDSAT-7 ETM+ data(1999).
     利用1993年JERS-1OVN及1999年LANDSAT-7ETM+遥感资料,并结合实地调查,研究了新疆且末绿洲土地利用变化(LUCC)及其驱动力
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     Land use pattern change and its social and economic driving forces in Poyang lake region from 1985 to 2000 Ⅰ.spacial change analysis of land use pattern
     鄱阳湖地区1985-2000年土地利用格局变化及其社会经济驱动力研究 Ⅰ·土地利用格局空间变化分析
短句来源
     Land use pattern change and its social and economic driving forces in Poyang lake region from 1985 to 2000 Ⅱ.driving forces analysis of land use pattern change
     鄱阳湖地区1985-2000年土地利用格局变化及其社会经济驱动力研究 Ⅱ·土地利用格局变化驱动力分析
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  驱动因子
     The impacts of driving forces on thermal environment were explored by means of causation analysis.
     通过对热环境的寻因分析,探讨热环境中各驱动因子对热环境的影响权重.
短句来源
     ANALYSIS OF DYNAMIC CHANGE AND DRIVING FORCES OF FARMLAND IN HEBEI PROVINCE
     河北省耕地数量动态变化及驱动因子分析
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     Analysis of Dynamic Change and Driving Forces of the Cultivated Land Area in Tianjin
     天津市耕地数量动态变化及驱动因子分析
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     The Variation and Driving Forces of City Water Consumed in Dalian
     大连城市用水变化及其驱动因子分析
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     Based on the Landsat TM data(1985,1995 and 2000) and other correlative statistic data,the paper focuses on the research of the land use change and driving forces in the Yangtze River Delta during the past 15 years.
     利用1985,1995和2000年LandsatTM数据和相关统计资料,分析了长江三角洲近15年来土地利用变化及驱动因子
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  驱动因素
     Taking Jiangxi Province as an example,in this paper,the change and driving forces in the process of industrialization and urbanization are analyzed by using the land use data and social-economic statistical data.
     以中部地区的江西省为例,利用土地利用变更数据与社会经济统计资料,通过分析土地结构变化、土地利用地域分布的特点,分析其工业化、城市化进程中的土地利用变化态势及土地利用变化驱动因素
短句来源
     Land Use Change Prediction and Driving Forces Analyses of Xinjian County
     新建县土地利用变化预测与驱动因素分析
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     The purpose of the study on land use change and the driving forces is to make people understand and handle the contradiction between economic development and resources protection correctly.
     通过本区土地利用动态变化研究以及人文驱动因素的分析,使人们正确认识和处理经济发展与资源保护的关系,将耕地保护与未来经济运行、人口发展相协调。
短句来源
     Case Study on Driving Forces of Land Use Difference at Provincial Level in China
     中国省区土地利用差异驱动因素实证研究
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     By comparing the studies made by Morgen (2000) and Hennig-Thurau (2002) on customer retention dynamics and analyzing the intermediate variables, the authors renew the systemic integration and reveal the driving forces behind customer retention.
     通过比较分析Morgen(2000)和Hennig-Thurau(2002)研究的客户保留驱动因素以及保留结果的中介变量,可以重新系统地整合并提出保留客户的驱动因素
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  “driving forces”译为未确定词的双语例句
     Economic and Industrial Fluctuations(1986-2003): A Preliminary Study of Correlation, Features and Driving Forces
     经济波动与产业波动(1986—2003)——相关性、特征及推动因素的初步研究
短句来源
     This paper focus on the practical problem of ecocity, which is the modern development tendency of urban, concludes the experiences of theoretical research , empirical research of ecological city ,and practice of ecocity, and systemmaticaly formulated the mechanism of construction of ecocity from aspects of concepts, connotations and characteristics ,and the theoretical foundations, orientations ,goals , principles ,driving forces of construction of ecocity.
     本文从城市发展的趋势—生态城市这一现实问题着眼,总结生态城市的理论研究以及生态城市相关实践的经验,对生态城市的概念、内涵和特征,生态城市建设的理论依据,以及生态城市建设实践进展、生态城市建设的动力机制,进行了系统阐述; 对生态城市建设实践中的误区和存在的问题作了综合的归纳总结。
短句来源
     The regional natural resource conditions, management policies, transportation systems, historical and cultural factors are the major driving forces.
     而区域自然环境资源分布特征、区域管理政策、交通系统和历史文化因素是影响快速城市化地区生态设施结构特征的主要因素.
短句来源
     Study on Land Use Change and Economic Driving Forces in Nanchang City
     南昌市土地利用变化及经济驱动机制研究
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     Analysis of the evolvement in information entropy of land-use structure and its driving forces in Wuhan
     武汉市土地利用结构信息熵演变及动力分析
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  driving forces
The driving forces are generated from the motions of projections on the stator in two modes.
      
The energy reservoirs and driving forces of these processes have a more global nature.
      
Even analysis in the framework of simple ideal models of adsorption demonstrates that thermodynamic driving forces resulting from chemisorption can cause surface reconstruction with the formation of microfacets.
      
Evaluation is one of the main driving forces in studies and developments related to text retrieval.
      
It was proposed that successive activities of the tip ecto-and endoderm serve as driving forces provided there is a hard outer skeleton.
      
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This paper proposes a method of analysis for problems of complex heat transfer in high-temperature furnaces, based upon the idea of thermal resistances in series and in parallel, and gives formulae for calculating the chief items of thermal resistances in a rotary kiln. It is proposed to use △(Tn) as the driving force in radiant heat-transfer. In a full discussion of periodic heat-flow into and from a refractory lining, it is pointed out that the "Thermal impedance" applicable to average values of temperature...

This paper proposes a method of analysis for problems of complex heat transfer in high-temperature furnaces, based upon the idea of thermal resistances in series and in parallel, and gives formulae for calculating the chief items of thermal resistances in a rotary kiln. It is proposed to use △(Tn) as the driving force in radiant heat-transfer. In a full discussion of periodic heat-flow into and from a refractory lining, it is pointed out that the "Thermal impedance" applicable to average values of temperature and heat flow is different from the ordinary a.c. impedance (applicable to r.m.s. values), and an approximate formula based upon rational analysis is given. The simplified mechanism of heat transfer between granules of calcinated material is also discussed.

本文根据串联和并联“热流阻力”的概念,提出了综合解决窑炉传热问题的“热流线路分析法”,并分别解决了旋窑中各项主要“热阻力”的计算公式。本文中建议把△(T~n)作为辐射传热的推动力。在讨论衬砖周期蓄热过程中,指出了适用於温度及热流的平均值的“阻抗”公式,与适用於“方均根值”的交流阻抗公式不同,并提供了一个有理论根据的近似公式。对物料粒子间的传热机理亦作了初步分析。

Grain boundary migration in recrystallised Armco iron during grain growth has been studied by vacuum etching method. It was found that grain growth in recrystallised α-ferrite is closely related with substructures within the ferrite grains, grains containing no substructures usually grow at the expense of those possessing substructures.Through tracing and analysing the remaining grooves of the migrating grain boundaries and together with other observations, we have confirmed the following theories suggested...

Grain boundary migration in recrystallised Armco iron during grain growth has been studied by vacuum etching method. It was found that grain growth in recrystallised α-ferrite is closely related with substructures within the ferrite grains, grains containing no substructures usually grow at the expense of those possessing substructures.Through tracing and analysing the remaining grooves of the migrating grain boundaries and together with other observations, we have confirmed the following theories suggested by previous investigators.1. The main driving force for grain boundary migration is interfacial energy of the grains.2. The manner in which grains in metals disappear is basically the same as that of soap bubbles in a semi-evacuated container.3. Burke's model for the formation of new grain boundaries at the expense of old ones.4. Grain growth is a discontinuous process.

本文叙述用真空热侵蚀方法研究α-铁再结晶后,晶粒长大晶界迁移的一些结果.观察到晶粒长大与晶粒内部的亚结构有着密切关系,一般是无精细亚结构的晶粒向有精细亚结构的晶粒长大,晶界迁移的速度也较快.通过仔细分析晶界迁移后遗留下来的槽沟,认为α-铁晶粒长大晶界迁移符合以下一些见解:1.晶界迁移的动力来源为晶粒界面间自由能.2.晶粒消失的过程与在半抽真空的容器中,肥皂泡消失的过程基本上相似.3.Burke所提出的旧晶粒界消失与新晶粒界形成的模型.4.晶粒长大是一个不连续的过程.

In this article the parametrically coupling of oscillations in a small ellipsoid of ferrite under the excitation of an uhf pumping of any spatial distribution is discussed. It is pointed out that the coupled oscillations may be induced through the two types of driving, field driving and magnetization driving. A special case of the former was recently discovered by Denton, who used a longitudinal pumping field uniform in space. A special example of the latter is found in Suhl's theoretical analysis...

In this article the parametrically coupling of oscillations in a small ellipsoid of ferrite under the excitation of an uhf pumping of any spatial distribution is discussed. It is pointed out that the coupled oscillations may be induced through the two types of driving, field driving and magnetization driving. A special case of the former was recently discovered by Denton, who used a longitudinal pumping field uniform in space. A special example of the latter is found in Suhl's theoretical analysis and a number of experimental works after him. The pumping field transverse in direction and spatially uniform does not induce the coupled oscillations directly, but the rf magnetization of the Kittel precession excited by the pumping becomes the driving force of the oscillations. For each type of a uniform pumping we obtain from a set of differential equations the magnetostatic potential functions (the first order approximation) as linear combinations of Walker's functions. These solutions are different from those given by MOHOCOB. Making. use of the boundary conditions at the ferrire surface we find that for the Walker modes involved in the oscillations to be coupled, thtir indices must satisfy certain condi'ions. For the case of magnetostatic operations the dc magnetic field is tuned to a pair of the Walker modes, the potential functions may be reduced greatly. By studying the power drawn by the coupled oscillations from the pumping, we obtain the selection rules of a pair of magnetostatic modes excited by a pumping field of any given spatial distribution. We point out that for the determination of the amplitudes of the oscillations the equations derived from the conservation of energy and from the equality of the number of quanta emitted must be used. Finally, the threshold intensity of Denton's pumping field is derived using Suhl's method. We indicate that this method is based on a perturbation calculation.

在本文中我们系统地讨论了铁氧体小样品在超高频电源的激发下产生参量振璗的耦合关系,指出激发机构应分为磁场驱动和磁化驱动二类。前者的特例为Denton新近发现的,使用空间均匀的纵向注入场;后者的特例为Suhl最早所研究的,使用空间均匀的横向注入场所激发的一致进动的磁化向量为驱动力。从静磁势函数的耦合微分方程我们得到这二种特殊注入方式激发的静磁势函数的完全解(一次近似),表达为Walker函数的线性组合,在边界连续的要求下,这些势函数中的Walker模只在它们的指标之间适合一定的条件时才相互关联。当直流磁场调谐于一对Walker模时,耦合的静磁势简化为静磁操作的势函数。我们具体分析了静磁操作参量振璗从注入场吸取的功率,根据后者必须不为零才可能产生参量振璗,我们推导出空间均匀场激发一对静磁模的选择定则,恰与从边界连续推出的关联条件完全相同,并且进一步得到空间不均匀场激发一对静磁模的选择定则。我们指出,参量振璗的振幅的决定必须引用能量守恒和量子数相等的方程。最后我们采用Suhl的方法推算出空间均匀的纵向注入场的激发临阈强度,并且讨论了这一方法的近似性质。

 
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