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geographic information classification and coding
释义
geographic information classification and coding
Encyclopedia
工学
地理信息分类与编码
释
geographic information classification and coding
地理信息分类与编码
为了适应现代计算机和数据库技术应用与管理的需要,通过地理时空分析、地理概念形式表达、计算机实现以及智能理解等过程,把现实世界中的地理目标和事物抽象为地理实体或对象,然后对地理实体进行分类与编码。
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poly(p-phenylene benzobisoxazole) fiber
poly (p-phenylene oxide)
poly (p-phenylene sulfide)
poly-p-phenylene terephthalamide
poly (p-phenylene terephthalate)
poly-p-phenylene terephthamide fiber
poly (p-phenylene vinylene)
polyprenol
polyprenol lipoids
polypropylene
polypropylene catalyst
polypropylene cigarette filter tow
poly (propylene exide)
poly (propylene exide); polyoxypropylene
polypropylene fiber
polypropylene fibers
polypropylene industrial filament
poly (propylene oxide)
polypropylene oxide
poly (propylene oxide); polyoxypropylene
polypropylene terephthalate fiber
polyprotic acid
polypus antri
poly-p-xylene
polypyrrole
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