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Honor
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Contact
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22
2022-12
22
2022-12
Longwall face coal mining method and roadway layout-roadway name
Longwall face coal mining method and roadway layout-roadway name
2022-12-22
22
2022-12
22
2022-12
Development Law of Overlying Strata in Coal Mining Face in Working Face Advancing Direction
Development Law of Overlying Strata in Coal Mining Face in Working Face Advancing Direction
2022-12-22
22
2022-12
Zones of the rock stratum above the goaf space of the coal mining face
Zones of the rock stratum above the goaf space of the coal mining face
2022-12-22
14
2022-12
Bearing pressure on the upper and lower sides of the coal face and near the original cut
Bearing pressure on the upper and lower sides of the coal face and near the original cut
2022-12-14
14
2022-12
Distribution of bearing pressure around coal mining face
Distribution of bearing pressure around coal mining face
2022-12-14
14
2022-12
14
2022-12
14
2022-12
Contents of Operation Regulations for Coal Mining Face -- Disaster Accident Prevention Measures and Coal Quality Management Measures
2022-12-14
