linear multilevel programming的用法和樣例：
例句
- In this paper, we focus on bilevel programming problem with a common decision variable in the upper level and lower level programming.
摘要主要討論上下層具有共同決策變數的一類二層規劃問題的求解方法。 - The nonlinear bilevel programming formulation and the trust region based algorithm are used to search the closest critical point.
建立了求解最近電壓穩定臨界點的非線性二層規劃模型，提出一種求解該問題的信賴域方法。
