Using COM technology, the author design USDE for some popular GIS data for-mats and realize the integration of some different spatial data.
利用COM技术，作者设计出了基于目前几种流行的GIS数据格式的USDE，并成功地实现了对几种不同格式空间数据的集成应用。
Transparent color, is mainly usde for all kinds of packaging, sealing, art decoration, office design, toy making and so on, very convenient.
颜为透明，主要用于：各类材料包装、封口、美工装饰、办公设计、玩具制作等，方便实用。
Transparent color, is mainly usde for all kinds of packaging, sealing, art decoration, office design, toy making and so on, very convenient.
颜为透明，主要用于：各类材料包装、封口、美工装饰、办公设计、玩具制作等，方便实用。
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