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差分析
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  difference analysis
     The valence electron structure of amorphous Fe-P alloy was analyzed based on the "empiric electron theory of the solid and moleculs", by extend method of bond length difference analysis.
     本文在“固体与分子经验电子理论”的基础上,通过推广的键距差分析,对非晶Fe-P合金的价电子结构进行了分析。
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     4.Concept of real-time criterion work condition was introducedand real-time consuming difference analysis can be done;
     4.引入实时基准工况概念,进行实时耗差分析
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     The Application of Differential Thermal and Thermo-gravimetric Difference Analysis to Mineral Identification
     矿物热重差分析的应用
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     Development and Application on Energy- consumption Difference Analysis and Operational Index Demand System
     耗差分析与运行指标考核系统的开发应用
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     Based on the characteristic temperature of the differential thermal curves for different minerals, the ignition temperature for differential thermal and thermo gravimetric difference analysis of total carbon, carbon dioxide, water crystal and sulfur in sulfides etc.
     根据矿物差热曲线特征温度 ,拟定使用热重差分析岩矿中全碳、结晶水、硫化物硫和二氧化碳等项目的灼烧温度范围 ,并进行热重差分析
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  differential analysis
     Differential Analysis of Shrinkage and Creep in Steel-Concrete Composite Sections
     钢-混凝土组合截面的收缩徐变微差分析
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     Differential analysis of shrinkage and creep in composite prestressed concrete beams
     预应力混凝土叠合构件的收缩徐变微差分析
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     Application of ActiveX control tool to energy-loss differential analysis system of power plant
     电厂耗差分析系统中ActiveX控件的应用
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     On the basis of current information resource of fossil power plant the energy loss differential analysis system was developed in B/S mode while using the modular design concept and advanced computer technology.
     在火电厂现有信息资源基础上 ,基于模块化结构设计思想 ,利用先进计算机技术 ,开发了 B/ S模式下的火电机组耗差分析系统。
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     The site application shows that energy loss differential analysis system adopting ActiveX can effectively improve the operating skill of the operators and the operation management of the whole plant.
     现场应用表明 ,采用 Active X控件的耗差分析系统能有效改善运行人员的操作水平和全厂运行管理水平
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  “差分析”译为未确定词的双语例句
     Using DSC technology, this paper studies the thermodynamic properties of the alloys in Sb-Se and Ge-Sb-Te system.
     利用热差分析(DSC)技术对Sb-Se和Ge-Sb-Te系合金的热力学性质进行了研究。
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     Some significant guiding principles fordifferential rate analysis of RE_1-RE_2-TBA system were proposed.
     本文为 RE_1-RE_2-TBA 体系的速差分析提供了有意义的经验规律.
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     Application of Decision Tree Produced by C4.5 on Natural Gas Data for Analysing Measuring Error
     决策树C4.5算法在天然气输差分析中的应用
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     81. 48 % , 62. 96 % , 11. 11 % , - 13. 58 % , with control group, respectively.
     81.48%、62.96%、11.11%、—13.58%。 以上指标经单因素方新疆医科大学顿I_论文差分析均有统计学差异(P<0.05)。
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     Analysis of Couple Age Difference in Beijing
     北京市夫妇年龄差分析
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  difference analysis
Representational difference analysis revealed four sequences probably located inb fDNA.
      
GA-treated and non-treated G2 pea cDNAs were compared using a newly developed method called cDNA representational difference analysis (cDNA-RDA), and several GA-suppressed mRNAs were found.
      
A spectral finite difference analysis of natural convection in a rectangular equilateral triangle cavity
      
Characterization of regional left ventricular contraction by curvature difference analysis
      
Formal difference analysis and unification onp-norm distribution density functions
      
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  differential analysis
Differential analysis of major natural cytokinins by enzyme immunoassay
      
An immunochemical method for quantitative differential analysis of major types of natural cytokinins in plant tissues subjected to minimal treatment, without purification or chemical modification of hormones, is proposed.
      
An algorithm of the protective transformation on the basis of controllable operations is given and its high stability to the differential analysis is shown.
      
A differential analysis of the magnesium abundances in 61 F-K dwarfs and subgiants with metallicities -2.6>amp;lt;[Fe/H]>amp;lt;+0.2 is performed based on published observational data.
      
The first technique involves a differential analysis of the reduced recombination rate ?Rnp(U)/?U and the second technique involves an analysis of the dependence Rnp2(U)/exp(qU/2kT).
      
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The thermo-stability of K_2TaF_7 in air and argon atmosphere was investigated by means of thermo-differential, thermo-gravimetric and chemical analyses and also X-ray powder diffraction method. An obvious heat-absorbing effect was observed at 218°±3℃ with the appearance of break-up of larger crystals. The melting point of K_2TaF_7 was measured to be 730°±3℃. During the course of heating, by the action of moisture in air, K_2TaF_7 was hydrolyzed into K_2TaO_2F_3 which is soluble in molten K_2TaF_7 and thus affects...

The thermo-stability of K_2TaF_7 in air and argon atmosphere was investigated by means of thermo-differential, thermo-gravimetric and chemical analyses and also X-ray powder diffraction method. An obvious heat-absorbing effect was observed at 218°±3℃ with the appearance of break-up of larger crystals. The melting point of K_2TaF_7 was measured to be 730°±3℃. During the course of heating, by the action of moisture in air, K_2TaF_7 was hydrolyzed into K_2TaO_2F_3 which is soluble in molten K_2TaF_7 and thus affects its melting point. This might throw light on the disagreement of the melting points of K_2TaF_7 determined by the various authors. The end product of hydrolysis of K_2TaF_7 was identified to be KF and KTaO_3 (potassium meta-tantalate). Finally, the different stages of hydrolytic reaction of K_2TaF_7 and its relation with various temperatures were discussed.

用热差分析、热重分析、化学分析及X射线粉末衍射法研究了K_2TaF_7在空气中和氩气氛中加热时的行为.发现在218°±3℃,有一显著的吸热效应,同时发生晶体破碎.测得K_2TaF_7的熔点为730°±3℃.当加热时,K_2TaF_7同空气中的水气起水解作用,水解产物能溶于K_2TaF_7熔体而影响其熔点.这可能是过去测定的熔点不一致的原因.确定了水解最终产物为氟化钾及偏钽酸钾.最后,讨论了水解反应的步骤及其与溫度的关系.

The properties of the local non-polar terms in latitude observations have been studied in this article. On the basis of analyzing the differences between instantaneously obtained latitude data of two different instruments at one and the same atation, we have fully demonstrated that the actual accuracy of latitude observations is much less than the internal accuracy of an instrument. And we have concluded that the main part of the non-polar term is composed of the error-factors, such as irregular refraction in...

The properties of the local non-polar terms in latitude observations have been studied in this article. On the basis of analyzing the differences between instantaneously obtained latitude data of two different instruments at one and the same atation, we have fully demonstrated that the actual accuracy of latitude observations is much less than the internal accuracy of an instrument. And we have concluded that the main part of the non-polar term is composed of the error-factors, such as irregular refraction in observing room, etc.; whearas the geophysical factors as tectonic movement, change of plumb line, etc. are of little importance.

本文研究了纬度地方非极项(简称地方项)的性质,通过对同一测站上两台仪器纬度观测值差的分析,说明纬度观测实际精度远低于内部符合精度。并指出地方项主要成分是观测室异常折射等因素造成的观测误差,而板块运动、垂线变化等地球物理因素所起的作用是次要的。

Shock associated noise is an important part of choked jet noise. Sound field and spectra thereof were investigated experimentally by utilizing the heterodyne analysis technique, so that both the screech and the wide-band noise can be recorded and studied. The sound pressures and spectra vary widely with the stagnation pressure, but the overall sound pressure level at 90?to the jet shows good regularity, it is nearly a constant between pressure ratios 3 and 8.5, given by 97 + 201og d, dB, d being nozzle diameter...

Shock associated noise is an important part of choked jet noise. Sound field and spectra thereof were investigated experimentally by utilizing the heterodyne analysis technique, so that both the screech and the wide-band noise can be recorded and studied. The sound pressures and spectra vary widely with the stagnation pressure, but the overall sound pressure level at 90?to the jet shows good regularity, it is nearly a constant between pressure ratios 3 and 8.5, given by 97 + 201og d, dB, d being nozzle diameter in mm., and empirical formulae are given to facilitate the SPL prediction on the whole range of pressures. The wide-band shock associated noise was found to be predominant in the range of pressure ratio between 2.5 and 7, and screech only up to slightly more than 5. For pressure ratios less than 2 or more than 8.5, the jet noise is entirely dominated by turbulent noise. New formulae for screech frequency and peak frequency of wide-band shock associated noise are given, which agree well with experiments. The existance of non-harmonic components in screech is explained. Interference effect seems to exist in the upstream direction between shock associated noise and turbulent noise, but not in the 90°direction. This phenomenon is explained by considering the phase relations of the noise.

冲击噪声是阻塞喷注噪声的重要部份。我们对它的声场和频谱作了详细的实验测量,由于采用外差分析技术,冲击噪声的离散谱和宽带谱可同时记录。实验表明,声场和频谱与驻压比的关系很复杂,但在与喷注垂直的方向上,距喷口1米处的总声压级,如驻压比在3到8.5之间,约为97+20logd分贝,基本不受驻压变化的影响,其中d是喷口直径,以毫米计。进一步又给出了全部驻压比范围内的总声压级的表达式。宽带谱在驻压比为2.5到7之间,离散谱在5到7之间最突出,驻压比小于2或大于8.5,阻塞喷注噪声则主要是湍流噪声。本文还给出了计算离散谱频率和宽带谱峰频的新公式;对实验中观察到的离散谱的非谐频成份,也作了解释。在喷注上游方向,观察到阻塞喷注噪声频谱具有一个或几个凹陷部份,表明在这些频率范围存在干涉现象,可能是湍流噪声与宽带冲击噪声之间的干涉现象,文中说明了这种干涉的可能性。

 
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