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A kind of method and system of geo-hazard early-warning
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A kind of water conservancy water utilities detection and control terminal
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A kind of mountain torrents are registered one's residence method for early warning, alarm and system
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A kind of septic tank method for safety monitoring, system and equipment
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A kind of solar energy photovoltaic panel voltage sampling method, system and circuit
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A kind of dam safety monitoring data collecting instrument and dam data monitoring method
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A kind of wireless ten thousand Netcoms terminating machine of Internet of Things
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A kind of differential pressure water level measurement system
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Remote measuring gate level gauge and gate level data remote acquisition system
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Hydrologic monitoring system
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Methane sensor system
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Pluviometer
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Streetlamp control method and apparatus
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Underground water quality sensor
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Sound wave water level gauge
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Street lamp fault detection method and street lamp fault detection device
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Soil moisture detecting apparatus
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Method for transmitting monitoring data of mountain torrent disaster early warning monitoring terminal
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Dust removing device for flue gas
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Surface flow velocity sensor
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