In addition, because the model system can correctly simulate space-time distribution of pollutants, it has a wide application foreground to urban air pollution prevention planning.
此外，该模式系统由于能够较为准确地模拟城市范围内污染物的时空分布，在城市空气污染防治规划方面具有较为广泛的应用前景。
The article applies fuzzy gathering distribution model and distribute species from different trees, time and space decides on the related parameter.
本文从不同树种、不同时间、空间的分布出发，应用模糊聚类分区模型先对样本进行分类，以便确定有关参数。
Then, an empty-car service time-space network is created, and a multi-stage optimization model of empty car distribution un.
基于空车服务时空网络的构建，采用动态规划方法提出了铁路局（公司）管内空车调配的多阶段策略优化模型。
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