电机的

The stator inner diameter of Powerformer is calculated according to the bend radius of cable and the slot shape is determined by the outer diameter of cable, a rated voltage 35kV and rated power 2550kW Powerformer is designed on the basis of this design method.

即根据电缆的弯曲半径计算电机的定子内径，由电缆的外径确定电机的定子槽形，在此基础之上设计了一台容量2550kW，额定电压35kV 的Powerformer。

The principle of the micro circular traveling wave ultrasonic motor is described mostly,which include the structure of the mo- tor,the principle of traveling wave,the principle of elliptical motion ,the drive principle of the motor.

重点介绍了微型环型行波超声波电机的结构、行波的产生、椭圆运动的产生、驱动原理等，最后介绍了制作这种电机的实验结果。

Shielding coil motor buried in the 屏蔽泵厂家 of the temperature relay, when the motor winding overheating, the play the role of over-temperature protection, according to the electrical insulation used in different levels, temperature relay temperature is different from the action.

屏蔽电机的线圈端部埋有磁力泵标日泵阀继电器，当电机绕组上海日机装屏蔽泵时，起到化工保护作用，根据上海日机装屏蔽泵所使用的绝缘等级不同，温度继电器的化工温度也就不同。

To promote the research and application of permanent magnet synchronous motor traction system of China's urbar rail rolling stock,the application and design characteristics of PMSM,the control techniques and efficiency optimization ways of system are overviewed by discussing the current research all over the world.

为促进我国城轨车辆用永磁同步电机牵引系统的理论研究与应用，结合国内、外研究现状，对城轨车辆用永磁同步电机的应用和设计特点，以及系统的控制技术和效率优化方法等进行了综述。

Control unit circles line electric machinery through the change of a group of silicon controlled rectifier with shunt-wound back of photograph of every photograph dream spark the stator voltage that angle will come to to change electric machinery.

控制单元通过改变绕线电机每相梦相背并联的一组可控硅的触发角度来改变电机的定子电压。

Control unit circles line electric machinery through the change every photograph carries a group of shunt-wound to the back silicon controlled rectifier on the back spark the stator voltage that angle will come to change electric machinery.

控制单元通过改变绕线电机每相背对背并联的一组可控硅的触发角度来改变电机的定子电压。

When profile shot remain in effect or alight from the absolute position, the electrical power will automatically reduce to about 20VA, both to save energy, but also reduce the electrical load and last longer enough.

当挡杆停留在起或落的绝对位置时，电机的功率会自动减低至约20VA，既节省能源，亦减低电机的负载，使用寿命更长够。

To China, it is an advantage to develop Electric vehicle with Permanent Magnet Synchronous Motor as the tractor.

我国有着丰富的稀土资源，发展以稀土永磁电机为牵引电机的电动汽车具有得天独厚的优势。

Thirdly,according to the structure and the driving force analysis results,this kind of superconducting motor is designed and produced.

然后，根据超导电机的结构和有限元方法计算的结果设计和制作了这种基于麦斯纳效应的超导电机。

In 1st chapter, the USM's developing history, features, classification, application and present research state are introduced respectively, as well as the content and purpose of this dissertation.

第1章主要介绍了超声波电机的发展历史、特点、分类、应用以及研究现状，并结合国内外超声波电机技术的发展趋势，阐述了本论文的研究意义和研究内容。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。