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classificationCode:"ipc:b01d"
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classificationCode:"ipc:g01n"
Personnel safety monitoring system and method for subway emergency rescue vehicle
Real-time monitoring type three-support structure synchronous construction method
Device and method for automatically measuring full-section gas emission quantity of mine laneway
Cable tunnel lining water leakage detection device and contour modeling method
Tunnel abnormal state monitoring method and system based on unmanned aerial vehicle
Multivariable fusion control full-automatic tunnel maintenance trolley digital information system