1.
The technical level and development trend of chinese AC VF drilling rigs
我国交流变频电动钻机的技术水平和发展趋势
2.
Simulation of Electric Rig Hoisting System Driven by AC Variable-Frequency Motor
交流变频电驱动钻机起升系统的模拟
3.
The research on the experimental system for automatic bit feed with variable frequency drive
变频驱动钻机自动送钻试验系统的研究
4.
AC-electronic motor
离子(变频)式交流电动机
5.
A Brief Discussion on the Difference of Asynchronous Motor with Variable-frequency Motor
普通异步电动机变频供电存在问题及变频电动机的特点分析
6.
Design and Research on AC Variable Frequency Rig Electrical System Based on Fieldbus;
基于现场总线的交流变频钻机电气系统设计与研究
7.
diesel electric driving rig
柴油机发电驱动钻机
8.
Research on Technology of Self-Controlled Soft Start with Variable Frequency for Synchronous Motor
同步电动机自控变频软起动技术研究
9.
a hammer driven by electric motor.
用电发动机驱动的钻。
10.
hand-held non-electric power-operated boring tools
手提式非电动机动钻具
11.
Design and Analysis of Inverter-driven Induction Motor;
变频器驱动下的异步电机设计与分析
12.
Control Strategy Research for Induction Motor Speed Adjustment Feeding by Variable Frequency Converter;
异步电动机变频调速控制策略的研究
13.
The Research on Adjustable Speed Driving Control and It s Effect on Inductive Motor;
变频驱动控制及其对电机作用的研究
14.
The Research on System of Permanent Magnet Synchronous Motor Variable Frequency Speed Adjusting;
永磁同步电动机变频调速系统的研究
15.
The Variable Frequency System to Induction Motor of Higher Power Factor;
高功率因数异步电动机变频调速系统
16.
Design and Aualysis on the Three - phase Asynchronous Motor Property of Frequency Control;
三相变频调速异步电动机设计与分析
17.
Design of the Stepper Motor Driver Based on Frequency Conversion
基于变频控制的步进电机驱动器设计
18.
Torque Ripple Study in the Motor Soft Starting Process with Discrete Variable Frequency Method
电机分级变频系统中转矩脉动的研究