机电的

Stepper motor is a kind of electromechanical component that is driven in step angle or line displacement by electric pulse signal. Because of having the advantage of easy open-loop control and no accumulating error, stepper motor is being applied widely in many fields.

步进电机是一种将电脉冲信号转换成相应的角位移或线位移的机电元件，具有易于开环控制、无积累误差等优点，在众多领域获得了广泛的应用。

Stepping motor is a kind of electromechanical component that is driven in step angle or line displacement by electric pulse signal. Because of having the advantage of easy open-loop control and no accumulating error, stepper motor is being applied widely in many fields.

摘要步进电机是一种将电脉冲信号转换成相应的角位移或线位移的机电元件，具有易于开环控制、无积累误差等优点，在从多领域获得了广泛的应用。

Stepping motor is a kind of electromechanical component that is driven in step angle or line displacement by electric pulse signal. Because of having the advantage of easy open-loop control and no accumulating error, stepper motor is being applied widely in many fields.

论文 页数：54 字数：22722摘要：步进电机是一种将电脉冲信号转换成相应的角位移或线位移的机电元件，具有易于开环控制、无积累误差等优点，在从多领域获得了广泛的应用。

Testing Turntables is a kind of complex and precise mechano-electronicequipment. It is mainly applied to the research, the test and the identification ofinertial platforms and intertial instruments. It is one of the key equipment toensure the precision of intertial guidance.

测试转台是一类复杂的精密机电设备，它主要用于惯性平台及惯性仪表的研制、测试和鉴定，是检测惯性导航系统精度的关键设备之一。

Mechanical failure of motors, drives and other vital electromechanical equipment are among the most common reasons for production stoppages.

电机、驱动器以及其他重要的机电设备的机械故障是工厂停产的最常见原因。

To the AC driving winding system by some resistants in serial, phenomenon of mechanical-electrical couple is studied, and shock and serious vibration of the system can't be avoided, whether it be controlled through torque or time.

对多段电阻串联控制的交流拖动提升系统，研究了提升机启动过程提升系统的机电耦合问题，发现不论采用力矩控制或还是时间控制，系统的冲击现象均较严重，剧烈振动难以避免。

The pilot circuit of underground motor control systems in common use is analyzed and the problems existed in the circuits such as self starting and un intrinsically safety,are pointed out in this paper.

引言随着我国煤矿自动化程度的提高，越来越多的煤矿机电设备需要采用微机对其进行控制和保护，但井下特殊环境对微机保护系统提出了严格的要求。

Founded more than ten years, more than the Pearl River Delta and the local hardware, electrical and electronics companies have become our long-term partner, such as: Kelon Group, the U.S. group, Matsumoto Group, Galanz, Lok Meida Group, Zhongshan Electrical, set Tak create, Rail GeneralGroup, Little Duck Group, HUA Feng, iron gods, Feida, Warwick, Wing Luen electrical appliances, power high, Vantage Group, the Solid Group, Liuzhou groups, security, Yongning packaging, adhesive and so the new crown.

公司成立十余年以来，珠江三角洲及本地多家五金、电子电器企业已经成为我们的长期合作伙伴，如：科龙集团、美的集团、松本集团、格兰仕、乐美达集团、中山机电、集德创建、铁将军、科仕达集团、小鸭集团、华锋、铁神、飞达、华威、永联电器、力高、华帝集团、固力集团、龙的集团、安防、永宁包装、新冠胶粘等等。

For accelerating the development in China, Invensys Controls has set up an APAC headquarters in Shanghai. At the same time, there are two wholly-owned subsidiaries under Invensys Controls: Invensys Controls Qingdao and Invensys Controls Weihai. They are the professional manufacturers for Temperature Controller for Refrigeration, Defrost Timer and Electronics Controller; Power Modulator for Kitchen; Electronical and Mechanical Controller for Cloth Washer and Dish Washer, Water Valve, Electronics Controller and Pressure Switch, etc.

为推动中国市场的发展，英维思控制系统将亚太区的总部设在上海，同时，控制系统中国区下属的两家独资企业：英维思控制器有限公司和威海英维思控制器有限公司，分别专业化生产冰箱、冰柜用温控器、化霜定时器和电子控制器；厨具用能量调节器；洗衣机、洗碗机用机电程控器、水阀、电子控制器和压力开关等产品。

For accelerating the development in China, Invensys Controls has set up an APAC headquarters in Shanghai. At the same time, there are three wholly-owned subsidiaries under Invensys Controls: Ranco Changzhou, Invensys Controls Qingdao and Invensys Controls Weihai. They are the professional manufacturers for Air Condition Revising Valve, Temperature Controller for Refrigeration, Defrost Timer and Electronics Controller; Power Modulator for Kitchen; Electronical and Mechanical Controller for Cloth Washer and Dish Washer, Water Valve, Electronics Controller and Pressure Switch, etc.

为推动中国市场的发展，英维思控制系统将亚太区的总部设在上海，同时，控制系统中国区下属的三家独资企业：常州兰柯四通阀有限公司，英维思控制器有限公司和威海英维思控制器有限公司，分别专业化生产空调用四通阀；冰箱、冰柜用温控器、化霜定时器和电子控制器；厨具用能量调节器；洗衣机、洗碗机用机电程控器、水阀、电子控制器和压力开关等产品。

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。