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Dirt seal housing for land surveying wave filter
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The amplitude modulation apparatus of land surveying communication
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The supersonic range finder of land property right information
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Weigh control information register system really based on data path
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Power supply filtering circuit of urban and rural cadastral information integration device on the basis of GIS (Geographic Information System)
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Measurement apparatus when contractual right of land is registered
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The filter of mobile data acquisition device
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The digital integration module of data acquisition device
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Geological data collecting system based on mobile GIS
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New property right plotting board
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The amplitude modulation module of mobile terminal data acquisition system
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Gather the phase modulation circuit of the mobile terminal of geologic data
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The voltage follower of Geological data collecting device
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