线路

The behaviors of traveling wave protection, du/dt protection, line low-voltage protection and line differential current protection are proposed which can illustrate the fault process clearly.

通过读取故障的原始录波数据，详细分析了这次故障的特征，给出了行波保护、电压突变量保护、线路低电压保护和线路差动保护的动作行为，使这次故障过程得到比较清楚的解释。

Finally, the model of Artificial Neural Network used to process multi-sensor information is researched.

此外，本文还研究了如何建立可导航地图数据库及车辆导航线路指南系统的问题，并提出了基于知识的线路指南系统设计方法。

According to national railway conference, the mileage of 200km/h railway have eached 6227km, and this is the same to the total mileage of 200km/h railway in Europe. In 2008, 10 Passenger dedicated railways with total mileage of 4100km, such as Jing-Hu, Jing-Shi,Shi-Wu and Jin-Qin and so on, will be constructed. In 3 -5years, constructions

根据全国铁路工作会议，目前，我国既有铁路经过技术改造，时速200公里及以上线路延展里程已经达到6227公里，相当于整个欧洲既有铁路提速到200公里以上线路的总和。2008年，京沪、京石、石武、津秦等10条客运专线将陆续开工，建设规模为4100公里。

According to the engineering practice and experience, designed a suit of debug method and flow for high-voltage transmission line microcomputer reclosing devices.

论文根据工程的实际情况与实践经验，设计了一套高压输电线路微机重合闸装置的调试方法及流程 5、按本文提出的方案对湖南省多条高压输电线路微机重合闸装置进行了改进，运行效果良好。

In these cases, the mode of singlepole reclosing was set, and when single phase grounded fault occurred at the transmission line, all of protection relay operated correctly, and three phases of one breaker directly tripped at one time, and this breaker was not reclosed.

详细介绍了华中某500kV变电站两起典型的重合闸不正确动作事故，即在单重模式下，输电线路发生单相接地故障，保护装置均正确出口情况下，其中一个线路断路器直接三跳，未重合。

In our country, many railways that were built in mountainous area have heavy gradient and curves with small radius. The radiuses of curves limit the speed of train.

我国幅员辽阔，有相当多的铁路处于山区，线路坡度大、曲线半径小，线路的曲线半径限制了列车速度的提高。

Along with 8 high-quality balanced low-impedance mic preamps, there are balanced high-impedance line inputs for direct connection of line sources or high-output instruments.

除了 8 个平衡式低欧姆麦克风输入端以外， PMH880S 还有平衡式高欧姆线路输入端，可以直接连接有高电平输出的线路音源或者乐器。

Then, the selection strategy and the pheromone updating method of the basic ant colony algorithm was improved.

送电线路的路径选择是线路设计中的重要环节，直接影响工程总造价及运行可靠性。

Public investment in infrastructure, Chairman Wang Qi added that with the new town development plan for 2015, will build 19 track lines, the total length of 561 kilometers, Shunyi, Yizhuang, Tongzhou and Daxing, etc. Metro to provide for the seven surrounding rail transportation services, during which the Daxing, Yizhuang line has also started construction, and the remaining lines are being carried out pre-engineering.

北京巿基础设施投资董事长王琪补充称，为配合新城发展计划，到2015年，将建成19条轨道线路，总长度561公里，顺义、亦庄、通州及大兴等为七个周边新城提供轨道交通服务，其间大兴、亦庄线亦已开工建设，其余线路正开展前期工程。

The price-cutting of ADSL makes all or different levels of schools and government organizations have a new direction to broaden the bandwidth, but the integration of many circuits is a new problem.

ADSL线路的降价让各级学校及机关行号多了一个拓展频宽的方向，但是多条线路的整合却仍是新产生的问题。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。