choppers

Overhead , the chopper roared and the big blades churned the air .

头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。

We broke open the crate with a blow from the chopper .

我们用斧头一敲就打开了柳条箱。

He hewed our way through the brambles with his sharp chopper .

他用他的利刃从荆棘中为我们开辟出一条道路。

A Speed control System Using a new AC Chopper

一种斩控交流调压调速系统

The Development of DC Chopper and Its Control System

直流牵引斩波器及其控制系统的开发

The research on mechanical characteristic of chopper cascade speed regulation system

斩波串级调速系统机械特性曲线研究

The Simulation Study and Analysis of Harmonic in Chopper Cascade Speed Control System

斩波式串级调速系统谐波问题的研究与仿真分析

A new type chopper of rising voltage based on the DSP

一种基于DSP的新型升压斩波器

A study on automatic control system with transistor chopper

一种晶体管斩波器自控系统的研究

Vibration brings great damage to work of field straw chopper .

秸秆粉碎还田机在工作过程中，由于振动给机具的正常工作带来了极大的危害。

The performance and the principal parameters of chopper control equipment are given .

给出了斩波调速装置的性能和主要参数。

Finally , experiments of the chopper controlled resistance and system were introduced .

最后，对电子电阻电路以及整个系统进行了实验分析。

Development of microprocessor based GTO chopper control system for Beijing metro

北京地铁GTO斩波调压车微机控制装置的研制

Application of Power Transistor Chopper to DC Motor Speed Control

直流电动机使用功率晶体管斩波器调速的研究

The performance test platform of the optical chopper has been built .

搭建了光学斩波器的性能测试平台。

Design of chopper of high voltage direct current generator

高压直流发生器中斩波电路的设计

Optimization Design Based on Genetic Algorithm for PWM Chopper Regulators

基于遗传算法的PWM斩波变换器优化设计

The application of beam chopper in the experimental study of the nuclear physics

束流调制器在核物理实验研究中的应用

Design of AC Chopper Regulator to Control the Voltage Based on DSP

基于DSP的斩控式交流调压器的设计

Development on Fault Diagnosis and Protection Device of GTO Chopper Drive System

GTO斩波调压系统故障诊断及保护装置的研制

The Expert System Applying to DC Chopper Circuit Fault Diagnosis

直流斩波电路故障诊断专家系统应用研究

Application of Speed Governing Technology with Internal Feedback High Frequency Chopper Wave to Industry Control

内反馈高频斩波调速技术在工业控制中的应用

Design and Research on the experiment bench of disk chopper

盘刀切碎器实验台设计研究

The state police said that they would lend us a chopper .

州警说他们可以借我们直升机。

Beam chopper in the experiment study of the nuclear physics

用于核物理实验研究中的束流脉冲调制器

Optimization of High Power Incoherent Fiber Laser Combination Beam Chopper

高功率非相干光纤激光组束方法的优化

The chopper technology can help us change rotor impedance and control rotor current .

通过斩波技术，实现转子阻抗的变化，控制转子电流。

Working Mechanism and Parameters Determination of Field Straw Chopper

秸秆还田机工作机理与参数分析

Influence Analysis of Cutter Arrangement on the Vibration of Field Straw Chopper

刀具布置对茎秆切碎还田机振动的影响分析

The AC chopper circuit and the control sequence in time were researched .

研究了交流斩波调压电路的拓扑结构和交流斩波控制的时序。