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object-oriented spatial data model
释义
object-oriented spatial data model
Encyclopedia
工学
面向对象空间数据模型
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object-oriented spatial data model
面向对象空间数据模型
将地理对象的属性(状态)及相应操作(行为)封装为一体的数据组织方法。
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ammonium hydroxide; ammonia solution; ammonia water; ammonical liquor; aqueous ammonia
ammonium iron alum
ammonium iron ( II ) sulfate hexahydrate
ammonium iron sulfate hexahydrate
ammonium iron ( Ⅱ ) sulfate hexahydrate
ammonium metatungstate
ammonium metavanadate
ammonium nitrate
ammonium nitrte
ammonium paratungstate
ammonium perchlorate
ammonium peroxydisulfate
ammonium persulphate
ammonium phosphate
ammonium phosphate fertilizers
ammonium phosphate sulfate
ammonium polyphosphate
ammonium secretion
ammonium sulfate
ammonium sulfate-nitrate
ammonium sulfate regulator
ammonium sulfite
ammonium sulphate precipitation
ammonium tungsten bronze
ammoniumvalue
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