The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
针对振动的三要素即振幅、频率及相位分别做了介绍；
Analysis is made on the main three phases of the expense control for highway engineering, especially in the methods, contents, requirements and objects of each phase.
对费用控制的三个主要阶段进行分析，对每一阶段的控制方法与控制内容作出说明，对控制要求和控制目标进行探讨。
This article introduces three types of SPE 's principle and its usage on the analysis of medicine separately: SPE cartridge, SPE disk and solid phase micro-extraction (SPME).
本文分别介绍了固相萃取的三种形式：固相萃取柱、固相萃取盘和固相微萃取的原理及其在药物分析和其他方面的应用情况。
Based on the detailed analysis of basic principle, the traditional three-phase short-circuit criterion of phase selection element based on sudden-change of phase current differential is improved.
在详细分析相电流差突变量选相基本原理的基础上，对传统相电流差突变量选相元件三相短路故障判据进行了改进。
Error analysis result shows that biased capacitor method can meet the need of measurement accuracy while the unbalance of three phase voltages is relatively small.
误差分析表明，偏置电容法在三相电压不平衡度较小时可以满足测量精度的要求。
Phase components method may offer advantages in the analysis of unbalanced three-phase networks.
使用相分量方法在分析电力系统三相不对称网络时更加方便。
This paper presents a theoretical analysis on the electromagnetic process of three-phase magnetic amplifier of the transductor type with bridge rectifier output circuit .
本文对工作绕组为串联或并联的三相扼流磁放大器（带桥式整流输出）的电磁过程进行了理论分析；
The analysis of three-phase circuits is little more difficult than that of single-phase circuit.
三相电路的分析比单相电路难不了多少。
This paper introduces error_wiring common situation of three phase and three line active electric energy meter, and introduces the methods of test, analysis and amendment.
介绍三相三线有功电能表错误接线常见情况，介绍检查、分析及更正方法。
The analysis shows that the measured impedance at the head of the line is not proportional to the fault distance when a three-phase fault occurs at the end of the line.
分析表明，线路末端三相故障时，线路首端的测量阻抗不与故障距离成正比。
Based on the analysis, a novel three phase capacitor induction generator which is capable of overcoming the weakness of previous induction generators and improving the power factor was proposed.
分析了风力发电系统中异步发电机的应用情况，提出了一种新型的三相电容式异步发电机。
Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the main harmonic components of the system were obtained.
通过对半控双三相12脉冲整流器的电流波形分析和傅立叶级数展开，得出系统的主要谐波成分。
Through the analysis of three phase prepayment control box use condition in Xiangfan district, the problems which are possible appearing during its operating process were pointed out.
通过对襄樊地区三相预付费控制柜使用情况的分析，指出控制柜运行过程中可能出现的问题，提出控制柜的改进意见。
Based on the analysis of the differential protection of the double winding transformer, the paper presents a simplified ratio restraint algorithms for the three phase, three winding transformer.
在分析双绕组变压器的差动保护算法的基础上，提出了适用于三相三绕组变压器的比率制动式算法，并对判据进行了简化。
On the base of analysis to the design feature of three-phrase induction motors, it applied the improved simulated annealing algorithm to the electromagnetic design of three-phase induction motors.
在分析三相感应电动机优化设计特点的基础上，将改进模拟退火算法应用于三相感应电动机电磁设计中。
This paper states a detecting method for defect of three-phase current motor and it also introduces the experimental analysis result and practice utilization condition of this detecting method.
本文阐述了对三相交流电动机故障的一种检测方法，并介绍了该检测方法的实验分析及现场应用情况。
At present, phase shifting method, Fourier transform method and fringe skeleton method are three most important fringe analysis methods.
目前，相移法、傅立叶变换法和条纹骨架法是三种主要的提取相位的方法。
The three-phase analysis method should be applied for the distribution calculation of electrical traction load in the electrical system.
电力牵引负荷在电力系统中的分布计算宜采用三相分析法。
The common failures of three phase non-synchronous motor are introduced and the analysis, judgement are proceeded in this article.
介绍三相异步电动机的常见故障，并做出分析判断。
Least-squares algorithm to fit a three-dimensional plane, it USES a pulse of consumer law, NRZ type differential phase modulation signal modeling and simulation analysis.
利用最小二乘算法实现对三维平面的拟合，采用的是脉冲对消法，非归零型差分相位调制信号建模与仿真分析。
This paper investigated the behaviors of flow and heat transfer of single-phase in rectangular microchannels with three-dimensional numerical analysis.
通过实验研究了内置均匀加热板的垂直矩形通道入口段混合对流换热的温度场和阻力特性。
A discrete and nonlinear mathematical model of three-phase four-leg inverter is built up with the switch state functions based on the analysis of its working modes.
在分析三相四桥臂逆变器工作模态的基础上，引入开关状态函数建立了四桥臂逆变器系统离散的、非线性的数学模型。
Viewed in this light, it will be found that the analysis of three-phase circuit is little more difficult than that of single-phase circuits.
鉴于此，三相电路的研究分析并不比单相单路研究难多少。
Analysis focused on the construction of the "three-phase" and "five elements".
分析的重点是施工的三阶段和五要素。
Analysis focused on the construction of the "three-phase" and "five elements".
分析的重点是施工的三阶段和五要素。
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