1·Duality principle is a powerful tool for the analysis of topological structure of power electronic circuits.
对偶原理是分析电力电子电路拓扑结构的有力工具。
2·In this paper the application of the duality principle to the DC-to-DC switching converters are investigated.
本文研究在直流-直流开关变换器电路中对偶原理的具体应用问题。
3·The article deals briefly with the "ideal element" and "Duality principle", which includes methods of teaching of the author.
本文简要而概括地介绍了“理想元素”和“对偶原理”，表明了作者在高等几何教学方法上的见解。
4·The dual law in lattice theory is introduced and some concepts and properties relative to it are discussed, while generalizing the concept of duality and the idea of the duality principle.
推广了对偶的概念与对偶原理的思想，在格论中引入了对偶律，并讨论了与之相关的一些概念和性质。
5·The NPL's evaluating method is still restricted by open-market hypothesis and some special principle, but the open-market hypothesis has duality.
不良资产评估仍需遵循公开市场假设，但这一假设具有二元性，不良资产评估还需遵循特殊的原则；
6·The article puts forward and sets out clearly algebraic substitution axiom and the principle of duality, which are both universal logic laws.
提出和阐明了两个普遍的逻辑规律——代数替换公理与对偶原理。