根据矿山测量中不同类型图件的特点，将其分成三类，并采用不同的方式进行管理。
The mine survey maps are devided into three types according to their features, and managed in different methods.
根据矿山测量中不同类型图件的特点，将其分成三类，并采用不同的方式进行管理。
The mine survey maps are devided into three types according to their features, and managed in different methods.
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