By using the rhetoric of duality, the artist formally presents the "rib of life".
艺术家在修辞上利用人类的二元性，使“生命的肋骨”在形式上开显出来。
Using the theory of duality, this paper deals with the shadow price of the transport network and proposes the method of producing transport network planning.
本文利用线性规划的对偶理论，研究了交通网络通路影子价格，并据此提出了道路网络规划方案产生的方法。
Then using the thought of the surrogate dual of DC programming, the surrogate dual of bilevel linear programming and the duality properties are given.
利用DC规划共轭对偶的思想，讨论解型线性双层规划的共轭对偶规划及其对偶性质。
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