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。

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The modal characteristics of dual core photonic crystal fibers(PCFs) are analyzed by a full vector supercell lattice overlapping model.

应用全矢量超格子叠加模型分析了双芯光子晶体光纤（PCF）的模式特征。

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This paper gives out that the relationship among lattice implication algebras, MV algebras, R0 algebras and other implication algebras based on lattices, and their dual algebras are established.

给出了格蕴涵代数、MV代数、R 0代数等一些格上蕴涵代数之间的关系，并建立了它们的对偶代数。

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