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- Main machine is adopted frequency speed control, it runs placidity and credibility. 主机采用变频调速，运行平稳可靠。
- Practice shows that frequency speed control of the equipment and the recycle of filtrate can reduce energy consumption and increase technics level in wastewater treatment. 工程运行实例表明:设备的变频调速和滤液的再利用能够降低污水处理的能量消耗,提高工艺运行水平。
- With project instance, instroduces the water system of air-conditioning adopted the variable frequency speed control technology to brine obvious energy efficiency. 结合工程实例,阐明了空调水系统采用水泵变频调速技术可以带来明显的节能效果。
- This paper discribes several components of variable frequency speed controlling in living district constant-pressure water feed,introduces a constant-pressure water feed system make up of iPF inverter(lays inside IWS constant-pressure control device). 概述了变频调速器在生活区恒压供水中的几种构成方式，介绍了采用iPF变频器（内置IWS恒压供水控制基板）组成的恒压供水控制系统。
- Tri-phase AC induction motor is used as the driving power for roller system.PWM variable frequence speed regulation is applied for motor speed control. 系统的滚筒以三相交流异步电机驱动，采用PWM变频调速方式实现电机的转速控制。
- variable frequency speed control 变频调速
- high voltage frequency speed control 高压变频调速
- Variable Frequency Speed Control of Hoist 提升机变频调速
- Variable frequency speed control device 变频调速装置
- variable frequency speed control system 变频调速系统
- variable frequency speed control technique 变频调速技术
- Slip of Induction Motor with Frequency Speed Control 变频调速异步电动机的转差率
- varying frequency speed controller 变频器
- Application of electromotor frequency speed control units in brine process 电动机变频调速装置在盐水工序的应用
- Brief Introduction Electric Design of Frequency Speed Control for Gantry Crane 桥式起重机应用变频调速技术的电气设计简介
- Common Mode Noise Phenomenon of Variable Frequency Speed Control System 变频调速系统中的共模噪声问题及其对策
- The Active Current Control of Varying Frequency Speed Control System 变频调速系统的有功电流控制方法
- The drill has variable speed control. 这钻机有变速控制。
- Design of Speed Control System for Full. 实车碰撞车速控制系统的设计。
