电网

Reactive power is an important factor of modern electrical power system which always has many harmonics and works with unsymmetrical load.

在现代电力网中，无功功率是影响电网性能的一个重要因素。

The road to the house was untarred, red mountain soil, but there was plenty of rich black soil in the field in front of the pig pens. The farmer chased the pigs out of the house onto the field."It was just a mountain area full of trees and grass here," he said."We set up electric fences around the field, but you only need to turn it on a couple of times. Pigs are smart and learn quickly, they won't try to escape after that."

通向房子的路是红色的土路，但牧场里是肥沃的黑土，这位年轻人把猪从猪舍里赶到这片土地上，这里以前是山区到处都是树和草，他说道：&我们在周围设立了电网，但只需通电一两次就可以了，因为猪很聪明，一两次触电之后，它们就不会试图逃脱了。&

Voguish technologies such as renewables (meaning windmills, solar panels and the like), high-speed rail, carbon capture and storage, advanced batteries,"smart" electrical grids and plug-in hybrid cars all received big dollops of cash.

诸如可再生能源，高速铁路，碳捕集和储存，高级电池，&聪明的&电网和可插式混合动力汽车等一些新兴技术都得到了大额的投资。

The transient and dynam ic process of breaking step before and after interconnection,and the behavior of breaking step protection and splitting device are also analyzed.

建立了福建电力系统及其与华东电网互联的模型，通过 EEAC直接法研究了系统主网架线三相短路极限切除时间，通过仿真算法研究了联网前后系统失步的类型和暂态、动态过程，并分析了失步保护和失步解列装置的行为，提出了设置防止灾变的安全自动化系统方案建议。

Well, today remindedme of my college days because I just finished my paper for bachelor's degree on the same day last year.

今天让我又回忆起了我的大学生活，因为正好是去年的这个时候我完成了学士学位论文，题目是《考虑分布式发电的配电网潮流算法研究》。

The automatic meter reading system is the technology guarantee for the commercialization of the electric power system.

配电网络中的自动抄表系统是电网推进商业化运营和管理，电力走向市场的技术保障之一。

Good harmonic attenuating effect might be obtained with constant K in certain stable situation.

还研究了电网参数和无源滤波器参数对K的稳定取值范围的影响。

While the power system is developing to high voltage, great grid, highly automatized , while the power system deregulation ,the need on enterprise information sharing and application integration is more urgent .

随着电力系统向者高电压、大电网、高度自动化发展，随着电力工业市场化的推进，对企业级和行业级信息共享和应用集成的需求也越来越迫切。

Circumrotating the crank, the acceleration device changes the rotation speed of the crank into higher rotation speed and impresses onto the direct current dynamo. Thus, the electric power could be stored in the storage battery.

利用人力为微型计算机发电可实现一举多得：人力发电对环境没有任何污染，微型计算机用户还可以实现强身健体的目的，可使微型计算机免受停电之扰，大大减轻电网负荷。

Taking the development platform of HVDC power transmission for example, the calculation result of impedance-frequency characteristic of traditional line commutated converter and that of FCC are compared. Simulation results show that the impact of impedance-frequency characteristic of converter on the resonance frequency of AC system is not negligible, and FCC can enhance the strength of AC system in a certain extent, improve system stability and effectively reduce AC equivalent impedance under resonance frequency, thus the harmonic instability of HVDC power transmission system can be avoided.

以直流输电开发平台为例，对传统电网换相换流器(line commutated converter，LCC)与FCC的阻抗频率特性计算结果进行对比，仿真结果表明换流器的阻抗频率特性对交流系统的谐振频率有着不可忽略的作用，FCC在一定程度上提高了交流系统强度，改善了系统稳定性，有效降低了系统谐振频率下的交流等值阻抗，从而更好避免直流输电系统谐波不稳定现象的发生。

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。