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geographic information classification and coding
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geographic information classification and coding
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地理信息分类与编码
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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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unimolecular adsorption
unimolecular base catalyzed alkyl oxygen cleavage
unimolecular base-catalyzed alkyl-oxygen cleavage
unimolecular electrophilic substitution
unimolecular elimination
unimolecular elimination [reaction] through conjugate base
unimolecular elimination reaction through conjugate base
unimolecular elimination through conjugate base
unimolecular free radical nucleophilic substitution
unimolecular ion decomposition
unimolecular nucleophilic substitution
unimolecular reaction
unimolecular reaction rate theory
unimolecular reaction theory
unimolecular termination
unimolecule
unimorphism
unincorporated society
uninodal curve
uninodal seiche
uninstall
uninsulated
unintegrable
unintended effect
unintentional/accidental invasion
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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