1.
Research of Four-wire Three-phase Active Power Filter based on Fuzzy-PI Control
模糊PI控制三相四开关并联型APF研究
2.
Research on Theory and Application of Four-switch Three-phase Shunt Active Power Filter
三相四开关并联型有源电力滤波器的理论与应用研究
3.
Pulse Width Modulation Signal Generation Methods for Four-Switch Three-Phase Inverters
四开关三相逆变器的PWM脉冲生成方式
4.
Brushless DC Motor Controlled Systerm of Four-Switch Three-Phase
基于四开关三相的无刷直流电动机控制系统
5.
Research on Design and Control of Four-phase Switched Reluctance Motor
四相开关磁阻电机的设计及控制研究
6.
Key Problems and Methods to Developing Rural and Urban Markets for the Household Electrical Appliances Enterprises;
家电企业开发三四级市场的关键问题及方法
7.
Novel Resonant Transition Soft-Switching Three-Phase PWM Inverters;
新型谐振过渡软开关三相PWM逆变器
8.
The Study on DC/AC Three Phase Soft Switching PWM for Inverter;
DC/AC三相软开关PWM逆变器的研究
9.
A Three-phase Rectifier Bridge Switch Module Based on Fast Recovery Epitaxial Diodes
三相超快恢复二极管整流桥开关模块
10.
Research on Three-Phase Partial Active Power Factor Correction
三相三开关部分有源功率因数校正电路的研究
11.
Investigation of chaotic behaviors in a four-phase switched reluctance motor drive
四相开关磁阻电动机系统混沌特性研究
12.
For phase-to-phase fault, it trips three phases and recloses three phases (checking synchronization and no-votage); when reclosing on permanent fault, it trips three phases.
使开关相间故障跳三相，重合三相（检定同期或无压），重合于永久性故障跳三相。
13.
three-phase four-wire watt-hour meter
三相四线有功电度表
14.
A Three-Phase Single-Switch Fly-Back Power Factor Correction Circuit with Lossless Snubber;
三相单开关反激式功率因数校正及其开关缓冲电路
15.
The union has annual revenues of $38m, of which $4m funds advocacy.
工会年收入三千八百万美元，其中四百万用于支持相关立法。
16.
Three-dimensional Tetrahedral Mesh Generator of KMAS and Study of Corresponding Theories;
KMAS系统中三维四面体网格生成器及相关理论研究
17.
THE DEFINITIONS OF SOME FOUR-DIMENSION MECHANICAL QUANTITIES AND THE RELATIONSHIPS WITH THREE-DIMENSION QUANTITIES;
几个四维力学量的定义及与之相应的普通三维量的关系
18.
An Investigation of Cognitive Attitude Towards Male Nurses in Four Top Hospitals in Changsha and Analysis of Related Factors
长沙市四所三甲医院对男护士认知态度调查及相关因素分析