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Keyword [reasonable time interval]
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1. Numerical Simulation Of Reasonable Mini-interval Time In Open-pit Mines Precise Blasting
2. Numerical Simulation Research On Optimal Milli-second Delay Time With Many Free Surfaces Hole By Hole Blast
3. Study On The Basical Requirements Of The Upward Mining On The Condition Of Underlying Seam With Great Cutting Height Fully Mechaniczed Mining
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