Notice how very little effort was required to update the model following this strategy, although the obvious problem of wasted space in the database has increased.
尽管很明显，数据库中的空间浪费增加了，但请注意，按照这种策略操作，只需花非常小的代价就可以更新模型。
A monolithic model of the lot-sizing and scheduling problem based on the JIT strategy has been proposed in this paper, and a heuristic algorithm using integrated method has been designed to solve it.
文章针对基于JIT思想建立的一种批量计划和作业排序集成问题，建立整体模型，设计了一种启发式算法采用集成方法求求解。
In addition, we found that, the choice of using direct translation strategy or problem model strategy had every reason to distinguish successful and unsuccessful students.
另外还发现，我国小学生对和差应用题的表征存在两种策略，即直译策略和问题模型策略。
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