22

2020-10

Study on Strengthening Support Mechanism and Control Technology of "Three Areas" in Surrounding Rock of Roadway with Multiple Strong Dynamic Pressure

Study on Strengthening Support Mechanism and Control Technology of "Three Areas" in Surrounding Rock of Roadway with Multiple Strong Dynamic Pressure

2020-10-22

22

2020-10

Development Path and Key Technology Analysis of Intelligent Directional Drilling in Coal Mine

Development Path and Key Technology Analysis of Intelligent Directional Drilling in Coal Mine

2020-10-22

22

2020-10

Application and Prospect Analysis of Bionic Robot Technology in Coal Mine

Application and Prospect Analysis of Bionic Robot Technology in Coal Mine

2020-10-22

22

2020-10

Processing Technology and Torsional Analysis of Hexagonal Joint of Drill Pipe

Processing Technology and Torsional Analysis of Hexagonal Joint of Drill Pipe

2020-10-22

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