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High-expansion-ratio wire harness sheath material and preparation method thereof
Full-electronic turnout safety control system and method for vehicle-to-vehicle communication
FULL-ELECTRONIC TURNOUT SAFETY CONTROL SYSTEM AND METHOD FOR VEHICLE-TO-VEHICLE COMMUNICATIONS
Fault diagnosis system and method for turnout collection representation
Remote maintenance system and method for target controller system
Novel automatic water sample collection unmanned ship
Gate lifting appliance of water-turbine generator set