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classificationCode:"ipc:g01r"
Nitrogen-rich air oxygen concentration detection device for airborne film separator
Method and device for monitoring organisms in automobile cabin
Tire pinning monitoring device based on electromagnetic sensing array
Unmanned aerial vehicle sampling device for soil pollution control
Turnout rail piece rail surface falling block detection method and device
Miniature water detection and transportation device driven by surface tension
Multi-adaptive portable geological perspective system detection vehicle
ROV inspection method of underwater immersion structure