电能

In the toaster,it changes to heat;in atiny wrist watch or asubway train or a75,000 horse-power industrial motor,it changes to mechanical energy.

对烤面包机来说，电能转化成热能，在一个小小的手表里或者地铁列车里或者一台75000马力的工业电动机里，电能转化成机械能。

ABSTRACT With the development of modern industry, more and more production processes and assemblies (like semiconductor manufacturing, computer integrated manufacturing system and paper making, etc) rely on those equipments whose kernels are CPU chips or power electronics devices. Moreover, owing to rapid use of large numbers of nonlinear or impactive loads and various faults in power system, many power quality problems will be caused, such voltage as sag, swell, unsymmetry, flicker, fluctuation, harmonics and so on.

随着科学技术及社会文明的不断进步和发展，尤其是以信息技术为先导的知识经济时代的到来，越来越多的自动化生产设备以对电能质量十分敏感的计算机或微处理机等为核心，这就对电能质量提出了更高的要求。

With consideration of the trade of the power market and the reserve market, participation of consumers into the reserve market through interruptible loads is studied.

通过综合考虑电能市场和备用市场的电力交易，研究了需求侧用户以可中断负荷的方式和发电侧共同参与备用市场的问题，建立了电网公司购买电能和备用容量的离散混合优化模型，给出了详细的求解算法。

Mechanical energy is changed into electric energy,which inturn is changed into mechanical energy.

可译为：机械能转变为电能，而电能又转变为机械能。

Finally, it gives the conclusion that the combination of ADE7169ASTZF16 and optoelectronic current transformer can on the one hand conquer the technology difficulties which are met in the design of kilowatt-hour meter in high-voltage, and on the other hand benefit its practical use.

并且得出结论，将该芯片与光电式互感器技术相结合，可以有效克服光电式高压电能表设计过程中遇到的技术难点，有利于光电式高压电能表的实用化。

To improve power quality, we have to diagnose, localize and classify the power quality problem.

为了提高和改善电能质量，必须对电能质量问题进行诊断、定位和分类。

SD series power inverters for tale communication facilities are devices that invert mains supply and battery power into uninterrupted and filtered AC power to provide computer and other electric equipment with continuous power supply in the case of unstable mains supply and power failure.

SD系列通信逆变电源设备是一种将市电及电池的电能转化为不间断的、净化的交流电能的变换装置，用以给计算机和其他电气设备提供可使用的连续交流电源，以备市电的不稳定及断电。

The other is the portable measurer based on PDA and wireless network, which is very useful, and represents a new measurement mode.

其二是基于PDA的便携式无线电能质量检测系统，将PDA应用于电能质量检测，不仅十分有实用价值，而且代表了一种新的测量模式。

Some design guide lines are discussed based on the structure of the system. The mutual inductance coupling model of the system is introduced. The circuit impedance is analyzed.

针对非接触感应电能传输系统的构成，讨论了非接触感应电能传输系统的设计准则，介绍了变换器的互感等效电路模型，并进行了阻抗分析。

The preliminary experiments prove that using the system can obtain the working situation of on-line energy metering devices, which will provide technical support for evaluation and assessment of measurement results.

通过初步实验证明，采用这种在线核查和随机监控系统能够安全便捷的掌控在线运行高压电能计量装置的工作状态，为有效地开展在线运行高压电能计量装置计量结果的评定和考核提供了技术支持。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。