1) lightning hazard maps
雷害图
2) lightning disturbance
雷害
1.
Analysis of the cause of lightning disturbance of Fuyang hydrologic information center;
阜阳水情分中心雷害事故原因分析
2.
In connection with the topography and landforms along the transmission line corridor,the protection angle of tower,the example of lihtning fault and the cause of lightning disturbance was analyzed and the specific lightning protection and managing measures were put forward.
通过对500 kV葛岗线雷害事故的统计分析,探讨了雷害事故的规律,结合葛岗线沿线地形地貌、杆塔保护角、雷击事故实例等,分析了雷害原因,提出了防雷治理的具体措施。
3) lightning damage
雷害
1.
How reduces the lightning damage which affects to therailway signal equipment;
如何降低雷害对铁路信号设备影响的探讨
4) lightning disaster
雷电灾害
1.
This paper analyzes the basic features of the lightning and the present situation of the electronic equipment in primary departments, points out that the abnormal grounding method is the direct reason of inducing the lightning disaster.
分析了雷电的基本特性及基层部门电子设备的现状,指出不规范的接地方式是诱发雷电灾害的直接原因。
2.
Characteristics of temporal and spatial distribution of lightning disasters are given according to the analysis of lightning disaster data from 2000 to 2007.
通过对2000~2007年的雷电灾害资料进行分析,给出我省雷电灾害的时空分布特征;分析了城市雷电灾害的成因;对典型城市雷灾个例进行了研究,提出一些防雷减灾措施。
3.
An index system of lightning disaster assessment in Beijing is established based the disaster network analysis.
在灾情网络分析的基础上,建立了北京市雷电灾害的灾情评估指标体系。
5) lightning accident
雷害事故
1.
In view of certain lightning accident happened in a chemical plant,the situation of the chemical plant is introduced,the factors caused by lightning accident,such as influence of meteorological conditions,lightning protection system,grounding system,insulation coordination and influence of switching over-voltage are discussed.
针对某化工厂遭受的具体雷害事故,介绍了该化工厂电气系统的现状;从气象条件、防雷系统、接地系统、绝缘配合和内过电压等方面分析了雷害事故发生的原因。
补充资料：图的减缩图(或称图子式)
图的减缩图(或称图子式)
minor of a graph
图的减缩图(或称图子式)【.皿以ofa脚户;MHHoPrpa中a」【补注】设G是一个图(graph)(可以有环及多重边).G的一个减缩图(nullor)是从G中接连进行下述运算而得的任何一个图: i)删去一条边; 五)收缩一条边; 说)去掉一个孤立顶点. NRobe由on与P.D.Se脚aour的图减缩定理(脚Ph nl的。r theon习11)如下所述:已知有限图的无穷序列G，，GZ，…，则存在指标i
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条