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LEVELING SYSTEM USING THE NATIONAL BENCH MARK
LEVELING SYSTEM USING THE NATIONAL BENCH MARK
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机译:使用国家基准的等级制度
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摘要
The present invention relates to a leveling system for exclusively measuring an altitude of the ground based on the national bench mark. According to the present invention a user can level using the national bench mark, easily measure the altitude on a point where the leveling is hard through a direct leveling, and measure the altitude in various cases.
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