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mathematical describe
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  数学描述
     The control principle and characteristics of theinverter and its mathematical describe are discussed.
     文中讨论了这种逆变器的控制原理和控制特性,以及数学描述
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  “mathematical describe”译为未确定词的双语例句
     The Mathematical Describe of Modelling Function in Indistinct Logical System
     模糊逻辑系统建模函数的数学描述
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     The Mathematical Describe of Modelling Function in Indistinct Logical System
     关于模糊逻辑系统及其建模函数的数学描述
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     The mathematical describe of the amount on insurance claim is the crux in estimating the loss.
     索赔额的数量描述是保险人估算危险损失关键。
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     In this paper, piezoelectric and electrostrictive and thermoelectric and electrothermal effects of the nonlinear dielectrical crystals were discussed through necessary mathematical describe and thermodynamic functions.
     本文通过必要的数学表述及热力学函数定性讨论了介电晶体的压电效应与电致伸缩效应和热电效应与电热效应.
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  相似匹配句对
     Mathematical Model to Describe Rotating Part Profile
     描述回转类零件轮廓的数学模型
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     The Mathematical Describe of Modelling Function in Indistinct Logical System
     模糊逻辑系统建模函数的数学描述
短句来源
     ON MATHEMATICAL INTUITION
     论数学直觉
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     On Mathematical Spirit
     谈数学精神
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     To Describe Shanghai
     上海现世绘
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A new type of three-phase current-hysteresis-nonlinear controlled current-followed SPWM VSI with maximum switching frequencylocked is proposed in this paper, which is developed by author. The power switches use a new field-controlled power-semiconductor-device IGBT, the switching frequency is up to 20kHz.The control principle and characteristics of theinverter and its mathematical describe are discussed. The results of theoretical analysis and drive experiment confirm that this inverter can accomplish...

A new type of three-phase current-hysteresis-nonlinear controlled current-followed SPWM VSI with maximum switching frequencylocked is proposed in this paper, which is developed by author. The power switches use a new field-controlled power-semiconductor-device IGBT, the switching frequency is up to 20kHz.The control principle and characteristics of theinverter and its mathematical describe are discussed. The results of theoretical analysis and drive experiment confirm that this inverter can accomplish accurate control for AC motor (both IM and PMSM).It has excellent static and dynamic performances.

本文论述了一种新型的,具有很高开关频率锁定的,三相滞环非线性控制电流跟踪型SPWM逆变器。功率开关采用新型场控功率半导体器件IGBT,其开关频率可达20kHz。文中讨论了这种逆变器的控制原理和控制特性,以及数学描述。理论分析和驱动电机的运行结果表明,它能实现对交流电动机(感应电动机和永磁同步电动机)的准确控制,具有良好的静态、动态性能。

This paper analyzes the behaviour of pilot control and proposes the de-mands to the mathematical describing of pilot in pilot-aircraft closed loop system. Thepilot's transfer function model.optimal control model and fuzzy control model are inves-tigated. The landing dynamic characteristics of some aircraft have been analyzed withpilot'S transfer function model.

通过对驾驶员操纵行为的分析,提出了在人—机闭环系统研究中驾驶员环节数学描述的要求,对驾驶员的传递函数模型、最优控制模型和模糊控制模型进行了分析研究,并对驾驶员模型在人—机闭环系统动态品质分析方面的应用进行了研究。

A number of epuilibrium data of single stage in the system (Nd-SM)Cl_3-HCl-H_2O-1mol/L HEHEHP-kerosence was determined On the basis of epuilibrium data, two mathematical describing extract epui-librium of Nd and Sm were developed.The models cover wide available ranges (the total RE concentration inepuilibrated apueous phase is 0. 07~0. 77 mol/L and the acidity is 0. 11~0. 48 mol/L; the mole fraction ofMd or Sm is 0. 020~0. 998) with small average relative errors(The model of Nd is 6. 11 % and the...

A number of epuilibrium data of single stage in the system (Nd-SM)Cl_3-HCl-H_2O-1mol/L HEHEHP-kerosence was determined On the basis of epuilibrium data, two mathematical describing extract epui-librium of Nd and Sm were developed.The models cover wide available ranges (the total RE concentration inepuilibrated apueous phase is 0. 07~0. 77 mol/L and the acidity is 0. 11~0. 48 mol/L; the mole fraction ofMd or Sm is 0. 020~0. 998) with small average relative errors(The model of Nd is 6. 11 % and the model ofSm is 3. 07 %, respectively ) With the developed models, the extract behaviors of Nd and sM, such as thedistribution of rare earth concentrations in both phase, the effects of acidity, RE concentration, mole fractionof RE in aqueous phase on the RE concentration in organic phase, were researched The separation circuits be-tween Nd and Sm simulated and performed by the experiments in laboratory. The purities obtained prod-uct of Nd_2O_3O_3 as well as Sm_2O_3 were higher than 99%.Two calculation programs were written in BASIC language. One of them is used for publishing epuilibri-um model and another is used for simulation of fractional solvent extraction. The amulation results obtainedmay serve as a reference for designing solvent extraction process.

MathematicalSimulationofNdandSmExtractSeparationin(Nd,Sm)Cl_3-HCL-HEHEHP-KeroseneSystemHuangWenmei;YingWeijuanandWangNaibin(黄...

 
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