只有电动机变得先进时，真空吸尘器才会普遍使用。
It was only when electric motors became advanced that vacuum cleaners became common.
单相电动机运转时，产生与运转方向逆方向的转矩，因此不可能在短时间内改变方向。
The single-phase motor has a reverse direction with the totating's when operated.
汽-电混合动力汽车之所以燃油经济性好，是因为它可以在频繁起步停车的市区行驶时使用电动机，在一般的行驶中使用汽油发动机。
Petrol-electric hybrids attain their fuel economy by using electric motors in stop-start city traffic and petrol engines when cruising on the highway.
使用电池供电的电脑来控制使风筝飞行姿态，在极端天气条件下或者是系绳出现问题时通过电机来控制，同时配有多台电动机提供备用。
Onboard battery-powered computer controls allow the kites to land themselves during extreme weather conditions, or if the tether is severed, and multiple motors provide a backup if one motor fails.
电动机的能量来源于一组506磅的锂电池组，捷豹公司表示，在240伏电压下，一次充满电只需要6小时。
Power for the electric motors comes from a 506-pound lithium-ion battery pack, which Jaguar claims takes a full charge in just 6 hours at 240 volts.
针对基于直接转矩控制的感应电动机在低速运转时存在较大的转矩脉动问题，该文提出一种新的控制方法。
Due to the large torque ripple of inductance motor based on direct torque control, especially at a low speed, this paper proposes a new control strategy.
针对基于直接转矩控制的感应电动机在低速运转时存在较大的转矩脉动问题，提出一种新的控制方法。
Due to the large torque ripple of inductance motor based on direct torque control, especially in a low speed, this paper proposes a new control strategy.
紧固齿轮泵、电动机的地脚螺钉时，螺钉受力应均匀，连接可靠。
Retention gear pump, motor and foot screws, screw the force should be uniform, reliable connection.
许多电动机在启动时的扭矩转速特性几乎不变。
Many motors are characterized by its constant torque-speed characteristic during starting.
许多电动机在启动时的扭矩转速特性几乎不变。
Many motors do have a nearly constant torque-speed characteristic during starting.
分析了电动机在双绕组工作与单绕组工作时的机械特性、铜损耗与允许转矩。
The mechanical characteristic, power losses and allowed torque of the motor were analyzed at two cases of normal and fault-tolerance operation modes.
如果电动机有什么毛病时，你必须关掉开关。
You must turn off the switch when anything goes wrong with the motor.
海水泵电动机当其负载电流接近额定电流时不能满足运行要求，请选择另 一台容量大的电动机。
The se water pump motor is unable to meet the operation requirement when its load current adjacent to its rated current. Please select another one with a large capacity.
海水泵电动机当其负载电流接近额定电流时不能满足运行要求，请选择另一台容量大的电动机。
The se water pump motor is unable to meet the operation requirement when its load current adjacent to its rated current. Please select another one with a large capacity.
较完整地得出：处在能耗制动时，异步电动机特有的等值电路、相量图及机械特性。
The equivalent circuit, the phase diagram as well as the torque-speed characteristic in the braking state are obtained.
仿真结果表明，此功率因数控制系统在空载和轻载时，可节能30%—50%，本论文为异步电动机的节能运行提供了重要的参考作用。
The simulation result demonstrates that it can save up capacity about 30-50% when there is no load or a little load. This thesis can provide important reference function.
主要介绍一种依据一台三相异步电动机在S1工作制下的运行参数推断该台异步电动机容量不变时在S7工作制下发热情况的方法。
Based on operation parameters of a three phase induction motor at duty type S1, this paper deduces the thermal state of this motor with constant output at duty type S7.
针对基于直接转矩控制中的感应电动机在低速运转时存在较大的转矩脉动问题，提出了一种新的控制方法。
For the large torque ripple of inductance motor based on direct torque control, especially at a low speed, this paper proposes a new control strategy.
对风机及电动机的电源电压、频率、功率，盘管规格，加湿器种类，空气过滤器形式及效率，配管口径及方向等有要求时请注明；
About the supply voltage, frequency, capacity factor of the fan and motor, specification of coil pipe, kinds of humidifier, form and efficiency of air filter, caliber and direction of pipe and etc.
在感应电动机等效电路的基础上，分析了当电源频率发生改变时，等值电路中主要参数的变化规律。
The principle of main parameter of the with the change of source frequency were given on the base of analyzing the equivalent circuit of induction motor.
当电动机的接线盒位置与其它部件冲突时，可以将接线盒从驱动端移到非驱动端（选件号：H08）。
If there is interfere between the connection box and other components, the connection box can be moved from the drive end (DE) to non-drive end (NDE) (Option code: H08).
如果更多的电力需求是间歇性，发动机的功率可补充电动机在电源时，需要更多的时间。
If demand for more power is intermittent, the power of the engine can be supplemented by an electric motor during times when more power is needed.
电动机起动时的母线电压降不得超过10%。
A bus bar voltage dip during motor starting, shall not exceed 10%.
根据开关的位置与流入电枢时电流的方向，电动机开始顺时针或逆时针旋转从而使座椅根据需要进行调整。
Depending on the switch position and the direction of current to the armature, the appropriate motor will either revolve clock-wise of counterclockwise to produce the desired seat movement.
本文分析了交流绕组式异步电动机在双机驱动时负荷的分配及平衡措施。
The load distribution and balancing method of twin motor drive with A. C. woundedrotor induction motors are analyzed in this Paper.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程，导出了异步转矩和阻尼转矩系数。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
本文提出一种计算较大电动机启动时对公共母线电压影响的方法。
This paper presents a calculating method for checking the voltage impact on common bus during large motor starting.
若传动装置配备手动，手动与电动机构转换时，应切断电源。
Cut down the power when the manual and electric device is switched.
本文对铁磁实体转子隐极同步电动机异步起动时的转矩与电压关系进行了研究。
This paper studied the relationship between torque and voltage, when the solid rotor synchronous motor involving non salient pole started asynchronously.
通过对电动摩托车行驶时各种阻力的分析，确定了其核心部件——电动机匹配的参数，并验证了其可行性。
Through the analysis of various resistance of electric motorcycle when driving, its key part-the matching parameter of motor, is confirmed and its feasibility is verified.
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