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2024
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Invention
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Double-channel filter. The present invention provides a double-channel filter, comprising a housi... |
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2023
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Invention
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Constant flow detection method based on nb-iot diaphragm gas meter. Disclosed in the present inve... |
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Invention
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Method and device for measuring hydrogen doping concentration of natural gas in gas pipeline. 12H... |
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Invention
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Method and system for controlling hydrogen doping concentration in natural gas in fuel gas pipeli... |
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Invention
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Electromagnetic drive type remote pressure regulating device and pressure regulating method. The ... |
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Invention
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Hybrid super pulse capacitor power supply circuit of gas meter. Disclosed is a hybrid super pulse... |
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2021
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Invention
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Nb-iot intelligent gas meter based on opencpu technology. An NB-IoT intelligent gas meter based o... |
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Invention
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Differential upgrade method for intelligent gas meter firmware. A differential upgrade method for... |
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2020
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Invention
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Anti-disassembly diaphragm gas meter with wireless remote-reading. An anti-disassembly diaphragm ... |
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Invention
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Anti-surge device of gas pressure regulator. An anti-surge device of a gas pressure regulator. Th... |
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Invention
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Gas pressure regulating station controller capable of 4g transmission, and optimization method fo... |
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Invention
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Intelligent gas meter anti-interference metering system. Disclosed is an intelligent gas meter an... |
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Invention
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Gas meter intelligent controller and firmware upgrade start-up method therefor. A gas meter intel... |
