chance constraint的用法和样例：
例句
- The optimization model of multi-product inventory with chance constrained attributes based on behavioral portfolio theory is established, which are solved as well.
结合行为证券投资组合理论建立了一种具有机会约束属性的多产品库存优化模型，并给出了其求解算法。 - Based on the definite maket demand, a model minimized average cost per time unit is considered and translated into a programming model with the fuzzy chance constrains.
在确定需求的基础上，建立了模糊需求下批量生产优化模型，并将其转化为模糊机会约束规划模型。
