任务区的维和民事警察却是另一种情况。
Civilian police attached to such missions are a different matter.
通过引入虚任务区概念，将三维约束降为二维约束，有效地降低了决策变量的复杂性。
The virtual mission area concept was advanced to transform the constraints of three dimensions to those of two dimensions to decrease the decision-variable complexities.
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