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直流    
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  dc
    Analysis and Research of Noise of DC Traction Motor for City Railcars
    轨道车辆直流牵引电机噪声的分析与研究
短句来源
    Application of Simplified Linear Quadratic State Feedback Design Method to DC Speed Control System
    简化的线性二次状态反馈设计法在直流调速系统中的应用
短句来源
    Special Problems and Improving Measures of H Type DC PWM Amplifirer in Braking Down
    H型直流PWM功放器制动时的特殊问题及改进
短句来源
    DM11 ZK4.5 cab DC air conditioning sets
    DF_(11)ZK4.5型司机室直流空调机组
短句来源
    Structure of DC and pulsating current traction motors and demands for their manufacture and maintenance
    直流与脉流牵引电机结构与制修要求(续) 第六讲 牵引电机的换向与改进换向的措施(续)
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  direct
    Research and Evaluation of High Voltage Direct Current Power Supply Plan in Electric Railway
    电气化铁路直流供电方案研究与评价
短句来源
    Direct Current Operation Power Supply System and Its Application
    直流操作电源系统及应用
短句来源
    Application of Labview in Integrated Testing Technology of Direct Current Locomotives' Main Control System in Shanghai Metro
    Labview在上海地铁直流机车主控系统综合测试技术中的应用
短句来源
    Application of D_(26B) 290 t Well Car in the Transport of Large Equipment in 500 kV Guiguang Direct Current Project
    D_(26B)型290t落下孔车在500kV贵广直流工程大型设备运输中的应用
    Discussion on the Protection Mode of Direct Current Traction System with Positive Pole Set Earthed
    直流牵引系统正极接地保护方式的探讨
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  direct current
    Research and Evaluation of High Voltage Direct Current Power Supply Plan in Electric Railway
    电气化铁路直流供电方案研究与评价
短句来源
    Direct Current Operation Power Supply System and Its Application
    直流操作电源系统及应用
短句来源
    Application of Labview in Integrated Testing Technology of Direct Current Locomotives' Main Control System in Shanghai Metro
    Labview在上海地铁直流机车主控系统综合测试技术中的应用
短句来源
    Application of D_(26B) 290 t Well Car in the Transport of Large Equipment in 500 kV Guiguang Direct Current Project
    D_(26B)型290t落下孔车在500kV贵广直流工程大型设备运输中的应用
    Discussion on the Protection Mode of Direct Current Traction System with Positive Pole Set Earthed
    直流牵引系统正极接地保护方式的探讨
短句来源
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  dc
The structure and properties of the samples were investigated by XRD, Raman spectral techniques, and DC measurements and so on.
      
Results of the analysis reveal that crystals of the complex 1 are orthorhombic, space group Pbcn, a = 4.6370(2) nm, b = 0.7549(2) nm, c = 1.3888(4) nm, V = 4.861(2) nm3, Z = 8, M = 945.49, Dc = 2.58 g/cm3, μ = 2.625 cm-1, R = 0.063, and wR = 0.075.
      
Furthermore, it is clear that when carrier signal h(t)=0, closed-loop pulse-width modulation (PWM) DC-DC converters are not well posed, and when some condition is satisfied, the closed-loop PWM DC-DC converters with a P controller are well posed.
      
The brushless DC motor (BLDCM) with trapezoidal electromotive force (back-EMF) waveform is used widely.
      
Bifurcation and chaos in multi-parallel-connected current-mode controlled boost DC-DC converters
      
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  direct
We express them in terms of generatorsEij ofU(gl(n)) and as differential operators on the space of matrices These expressions are a direct generalization of the classical Capelli identities.
      
For a cellA?Wf we consider a full subcategory formed by direct sums of tilting modulesQ(λ) with highest weights.
      
The Direct Summand Property in Modular Invariant Theory
      
The group of direct isometries of the hyperbolic space ${\Bbb H}^n \mbox{is} G=\mbox{SO}_0(n,1).$ This isometric action admits many differentiable compactifications into an action on the closed n-dimensional ball.
      
We show that ${\mathcal M}(G,R)$ is a symmetric tensor category, i.e., the motive of the product of two projective homogeneous G-varieties is a direct sum of twisted motives of projective homogeneous G-varieties.
      
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  direct current
Direct current magnetic susceptibility measurement in the 2-300 K temperature range supports a high-spin ground state.
      
This paper analyzed the operating principles and power and torque characteristics of the wind turbine and the direct current motor (DC motor), and investigated the operating characteristics of the wind turbine compared to that of the DC motor.
      
Surfacing beads are prepared by a direct current tungsten inert gas arc nickel-aluminum (Ni-Al) powder surfacing process.
      
Using A-TIG welding with the modes of alternating current (AC), direct current electrode negative (DCEN) and direct current electrode positive (DCEP), respectively, the flux differently affects weld penetration when the polarity is different.
      
The structure, phase transition, oxygen ion diffusion and electrical conductivity were studied with X-ray diffraction (XRD), differential scanning calorimeter (DSC), direct current (dc) resistivity, and dielectric relaxation (DR) measurements.
      
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  hvdc
Digital controller for hybrid filter in HVDC based on approximate inverse system
      
The results of both simulations based on PSCAD and experiments on a 30 kVA HVDC system prove that the proposed digital control system is stable and efficient for eliminating the harmonics.
      
A robust adaptive control with unmodeled dynamic for HVDC transmission systems
      
Utilizing the feature of quick response of HVDC to improve the performance of AC/DC system has become the emphasis to be researched.
      
The additional control of HVDC with unmodeled dynamics only uses the local signals and its design is simple, furthermore it can obviously improve the stability of power system in different operational conditions.
      
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