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Keyword [protected range]
Result: 1 - 3 | Page: 1 of 1
1.
Study On The Protected Range And The Law Of Gas Migration Of Upper Protective Coal Seam With Closed Distance
2.
Variation Law And Engineering Application Of Protected Range For Deeply Buried Upper-protective Layer Mining In Different Inclination Of Coal Seams
3.
Research On Protective Range And Protective Effect Of Stress Concentration Area Of Remaining Coal Pillar Mined By Short-range Protective Layer In Xinjing Mine
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