排序方式: 共有42条查询结果,搜索用时 15 毫秒
41.
42.
Melissa Lamont 《The Journal of Academic Librarianship》1997,23(6):469-473
Geographic information systems (GIS) are commonly misconceived as expensive and complicated map makers. Although GISs do create maps, they manipulate, organize, and display information, and aid in data documentation and accessibility. Managing GIS services involves, not just hardware and software issues, but managing digital data. 相似文献