忽略电网中的其它元件，将电网从结构上简化为以开关当作节点的网络，应用电工网络图论原理建立节点的邻接矩阵和节点信息矩阵。
The power distribution network can be simplified as switch node network. By applying electric network graphic theory its adjacent node matrix and node information matrix can be derived.
从电工学基本原理出发，详细讨论了变压器有功功率差动保护原理如何实现的问题。
According to the principle of electrotechnics, how to carry out power differential theory of power transformer is discussed.
根据电工图论原理，提出了整套配电网结构辨识，故障定位隔离以及故障后重构的方案。
Based on algebraic graph theory, an intergrated project of distribution network to identify the distribution network structure, fault locating and reconfigure it.
本文首先简要介绍了电励磁双凸极电机的结构、数学模型以及电动和发电工作的原理。
First, this thesis introduces the basic structure, static characteristic, operation principle of Doubly Salient Electro-Magnetic Motor and Generator.
应用流体机械相似定律及电工学原理，阐明变频调速原理。
The analogical law of fluid machines and principle of electronics are applied to explain the principle of frequency conversion.
通过高温落球粘度计测量聚丙烯的零切粘度的原理和方法，并报道了用这一方法对电工级聚丙烯原料的零切粘度的实际测量结果。
The high temperature falling ball viscometer made by authors has been described as well as some results of polypropylene measured with it.
通过高温落球粘度计测量聚丙烯的零切粘度的原理和方法，并报道了用这一方法对电工级聚丙烯原料的零切粘度的实际测量结果。
The high temperature falling ball viscometer made by authors has been described as well as some results of polypropylene measured with it.
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