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4:47
Surface Mining - 1.3 Boxcut
10:52
Surface Mining - 1.1 Introduction
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Basic Mining Terminology With Mr M, Gold Mine Verticle Shaft Stopes? Raises? Stulls? Waste Rock?
20:56
TOP 15 BIGGEST Mines on Earth
3:25:28
50 obras-primas da música clássica para relaxamento e alma | Beethoven, Mozart, Chopin, Bach, Vivald
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What is Mining?
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1.4 Stripping Ratio
26:17