...通常都把需要选址的设施看作是供应点(supply centers)，而将位置已经固定的用户(即设施服务的对象)看作 是需求点(demand points)。需求方在空问上很可能是散布和 蔓延的。
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而这将转化为更低的GDP增长，直到一些新的需求点被发现。
That, in turn, will translate into much slower GDP growth, unless some other source of demand can be found.
与以往研究不同的是，文章用需求区域代替距离和问题中的需求点。
This paper investigated a constrained minisum location problem with the demand points replaced by demand regions.
像今夜这样明亮的夜晚，就不需求点一盏夜灯，由于明亮的夜灯也会变得微弱。
There is no need to light a night light on a light night like tonight, for a bright night light is just like a slight light.
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