| quadrangle |
The geographic area covered by a map. One kind of map quadrangle is the 7.5' x 7.5' area that is covered by a standard USGS 7.5' topographic map. Referring to a 7.5' map quadrangle does not imply the presence of an actual paper map. The term may simply designate the area covered by electronically stored materials.
출처: www.doc.state.ne.us/ids/NIDCAC/glossary/index.shtm...
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