该值指定被保留索引范围的最小边界值。
SHN_LORESERVE This value specifies the lower bound of the range of reserved indexes.
发现与人口普查区重叠的邮政编码区域,并发现这些区域中最小边界矩形(MBR)内的所有街道。
Find all zip code areas that overlap with any of the census blocks, and find all streets that lie within the minimum bounding rectangle (MBR) of any of those zip code areas.
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