High and low double speed filling can avoid the overflow phenomenon, and can significantly increase the production efficiency.
高低双速灌装，避免产生冒溢现象，同时大幅度提高生产效率。
In the technology reform of Dongjiang Pumping Station, a large scale axial -flow pump with double speed is used to fitting in with the nature of the pump head varying greatly.
东江泵站结合扬程变化幅度大的特点，在技术改造中采用双速全调节叶片的大型轴流泵机组型式，取得了明显的节能效益。
The double speed switch has the advantages of simple structure and good transmission effect.
这种结构的双速开关结构简单、传动效果好。
The same set of system (double speed) is used for usual ventilation and smoke extraction in case of fire accident, so the air intake is set as normally open.
平时通风和火灾时排烟共用一套系统(双速)，故风口设置为常开型。
To solve this problem, a method using double speed loops, combined with technique of nonlinear acceleration compensation is brought forward and applied in the servo system.
针对这一问题，提出了采用速率环和稳定环的双环控制方法，并结合非线性加速度补偿技术，只采用一级稳定即实现了较高的稳定精度。
The paper introduces the main performance indexes of double speed three phase asynchronous motor used in electric chain hoist and the problems which occor in the test and manufacture process.
本文介绍了电动环链葫芦用三相双速异步电动机的主要性能指标以及在试制过程中遇到的问题。
双速电机。
The computer aided design procedure and relative software development about double-speed winch will be mainly described in this paper.
本文主要论述双速卷扬机的计算机辅助设计及软件开发。
In this paper, the domestic and foreign market situation and level of explosion-proof motors with double-speed and electromagnetic brake are analyzed firstly.
本文分析了该类电机国内、外市场状况及其水平，阐述了电机变极调速的方式与方法。
The invention relates to a reduction gearbox of an electric tool, in particular to an assembling structure of double-speed impact electric drill gear reduction gearbox.
本发明涉及一种电动工具的减速箱，具体地说是一种双速冲击电钻齿轮减 速箱的装配结构。
Rated frequency is 50Hz. The JP2 double-speed finishing motors are with speed-change switch for changing quick or slow speed easily.
额定频率为50Hz，JP2D双速磨光电机可带速度转换开关，方便快慢速度的转换。
You can now easily activate a 30-second replay, for example, and you can change the replay speed (half-speed and double-speed).
你现在可以激活30秒的回放功能，你也可以改变回放的速度(半速和两倍速度)。
You can now easily activate a 30-second replay, for example, and you can change the replay speed (half-speed and double-speed).
你现在可以激活30秒的回放功能，你也可以改变回放的速度(半速和两倍速度)。
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