Seabed drilling and grab bucket integrated sampling equipment and use method
Crawler transportation type anchor support integrated equipment for coal mine tunnel
Hydraulic support pushing jack for half-cutting coal mining technology
Shield tunneling machine cutterhead, cutter changing method and shield tunneling machine
Sea-to-sea directional drilling and crossing operation system and method
Rail self-moving equipment train and operation method thereof
Comparison of Water-Lifting Aerator Type for Algae Inhibition in Deep Reservoirs
Derrick lifting holding pole for oil well and lifting method
Crawler-type horizontal directional drilling television imaging device
Hydraulic support pushing jack for half-well cutting coal-mining process
Stall protection device for trackless rubber-tyred vehicle
Precise filling intelligent robot behind crawler-type frame based on improved hydraulic support
Shaft angle adjusting frame and shaft temporary plugging simulation device
Low-vacuum tunnel traffic system and evacuation structure for low-vacuum tunnel
Inclined roadway lower platform rope dividing device and method thereof
Single-circle shield type subway station structure and interval structure
Crawler-type horizontal directional drilling comprehensive geophysical prospecting device
Drilling equipment transportation device and using method thereof
Single-rail two-stage suspension system for full-section hard rock heading machine to dig roadway
Device for rapidly discharging slag in vertical shaft