The drill has variable speed control.
这钻机有变速控制。
"We looked into installing a variable speed drive on the press," explains Yager, "so we could stamp the aluminum at the slower speed and the steel at the original speed."
我们考虑在压机上安装一个可变速的驱动装置，这样我们就可以冲压铝件时降低速度，冲压钢件时恢复原来的速度。
The performance of AC variable speed drive system has been improved greatly since field-oriented control is applied.
矢量控制使交流调速系统的性能产生了质的飞跃。
The feeding system of the machine is controlled by a stepless variable speed motor with easy and reliable speed regulation.
制粒机喂料系统采用无级变速电机控制，调速方便可靠。
As a new kind of variable speed drive system, the product has great potentialities of development and wide prospects of market.
作为一种新兴的调速系统，该产品发展潜力较大，市场前景广阔。
The model of hydraulic motor pump variable speed control system is built.
同时建立了该液压电机泵变速控制系统的数学模型。
Two control ring work together to realize variable speed constant frequency.
运行时机组的两个控制环同时工作，实现变速恒频。
A hydraulic variable speed drive system of shield disk cutter has been designed.
设计了盾构刀盘变转速液压驱动系统。
Based on vector control theory, a fully digital variable speed system is designed.
基于矢量控制理论设计了一套全数字变频调速系统。
The changes in variable speed drive technology for electrified railways are summarized.
概述电气化铁路用可变速传动技术的变迁。
A driven method of extruders by variable speed switched reluctance motor drive is put forward.
介绍了用开关磁阻调速电机驱动挤出机的方法。
An adaptive feedback linearization controller for a variable speed wind turbine system is proposed.
针对变速风力发电系统提出了一种自适应反馈线性化控制器。
All this indicate that GEHP has good part load characteristic and fit for variable speed adjustment.
这说明燃气机热泵部分负荷特性好，可以很好的实现变速调节。
Principle and method for selecting variable speed ratio curves of manual and power steering gears are discussed.
讨论了手动及动力转向器变速比曲线的选择原则及方法。
Individual infinite variable speed drive of each roll with AC-motors coupled to programmable frequency inverters.
电机驱动方式为交流变频无极变速驱动。
In this paper the eddy field of a CTD variable speed motor is analysed and calculated by the finite element method.
本文用有限元方法对CTD调速电动机的涡流场进行了分析和计算。
But for turbines above 1 MW they also started to take variable speed because of problems they had with the gearboxes.
但是对于1兆瓦以上的风电设备，由于齿轮箱设计的问题，他们也开始采用变速方案。
Variable frequency and variable speed motor system is of high intelligence, high reliability, fault-tolerant capability.
变频调速电动机系统具有高智能、高可靠性和高容错能力。
The boxed processor fan heatsink uses a variable speed fan that increases in speed as the air temperature entering the fan increases.
盒装处理器的风扇散热器采用了一种变速风扇，它可以随着进入风扇的空气温度的升高而提高转速。
We discuss mainly some kinds of typical control methods of modern AC variable speed and their application in Marine electric propulsion.
综述了现代交流调速技术的几种典型控制方式在船舶电力推进中的应用。
The structure, mechanism and numerical control method of lathe spindle driven by variable speed switched reluctance system were introduced.
介绍了开关磁阻调速式车床主轴的结构、机理及其数控方法。
And aiming at robust stability, steady state accuracy and capability of anti-jamming, we take the experiments of the variable speed and load.
针对系统的鲁棒稳定性、稳态精度以及抗干扰能力，进行了变负载、变电机转速实验。
Establishment of torque mathematic model for a variable speed turbo coupling is the key for analysis and calculation of system dynamic response.
建立调速型液力偶合器力矩特性数学模型是分析和计算机械系统动态响应的关键。
An ABB variable speed drive system is to power the giant fan that generates subsonic wind speeds at Boeing's flagship wind tunnel in Philadelphia.
ABB的一个变速驱动系统正在为波音公司在费城的旗舰风洞的大型风扇提供动力，以制造出次音速风速。
The presented linearized model of doubly-fed induction generator is suitable to the related researches of doubly-fed variable speed wind turbines.
文中提出的双馈感应发电机线性化模型适用于变速恒频双馈风力发电系统的相关研究。
Wind power generation system should adopt the variable speed constant frequency (VSCF) control strategy in order to maximize the use of wind energy.
为了最大限度地利用风能，风力发电系统应采用变速恒频控制策略。
The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system.
双馈发电机的有功和无功功率的解耦控制是变速恒频（VSCF）风力发电系统的关键技术。
The torque control, pitch control and general wind turbine coordinate control strategy of variable speed adjustable pitch wind turbine were researched.
针对变速变距机组的转矩控制、桨距控制以及整机的协调控制进行了研究。
This paper presents the design of thyristor triggering circuit for a variable speed constant frequency (VSCF) wave energy electricity generating system.
介绍了变速恒频波浪能发电系统的晶闸管触发电路设计。
Take the manufacture of Z535 variable speed gear box for example, to analyze the causes of gear noise and effective technological means of noise control.
以制造z 535变速齿轮箱为例，分析了齿轮噪声的产生原因和控制噪声所采用的有效工艺手段。
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