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1.系统采用MapxX4.0进行GIS开发，因此首先要安装该控件。2.系统采用Access数据库作为后台数据库，读者也可以将其导入到SQL Server中。-1. MapxX4.0 to GIS system development, therefore we must first install the controls. 2. System uses Access database as the back-end database, readers can also be imported into SQL Server in.
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