The key to power distribution system is to ignore transient process in this sub-system and to draw the network equivalent circuit diagram, therefore its node voltage equation is algebraic equation.
配电子系统的建模关键是忽略其内部的暂态过程并作出了网络的等值电路图，因而依此建立的节点电压方程为代数方程。
A method for the calculation of equivalent porous permeability is presented by using the fracture geometry data in a network fracture system.
给出了网络状裂隙的等效连续介质渗透系数计算方法和耦合模型中实现源与汇作用的方法。
Besides, the equivalent model of the external power network of metro system is researched, and the impact and influence of the metro load to external power network is analyzed.
同时，对地铁供电网络的外围网络进行了等值简化处理，分析了地铁负荷对外围网络的冲击和影响。
Aiming at the current and voltage impulse problems in a high power pulse forming network with capacitor energy storage system, the equivalent circuit model of the pulse forming network is established.
针对电容储能高功率脉冲成形网络工作过程中存在的电流和电压冲击问题，建立了脉冲成形网络的等效电路。
CHINA's high-speed rail network is probably the world's most ambitious public-works project, a 21st-century equivalent of America's Interstate highway system.
中国的高速铁路网可能是世界上最雄心勃勃的公共工程项目：21世纪中国版的‘美国州际公路’。
This paper USES the equivalent thermal network method to calculate the stator temperature field of the water-hydrogen-hydrogen-cooled turbo-generators when the water cooling system.
本文采用热网络法计算了水-氢-氢汽轮发电机稳态运行冷却水路堵塞时的定子温度场。
This paper USES the equivalent thermal network method to calculate the stator temperature field of the water-hydrogen-hydrogen-cooled turbo-generators when the water cooling system.
本文采用热网络法计算了水-氢-氢汽轮发电机稳态运行冷却水路堵塞时的定子温度场。
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