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Typical Underground longwall coal mine development layout
Enkhtaivan Battulga
140 subscribers
198
0
37972
Published by: Enkhtaivan Battulga
Published at: 11 years ago
Category: علمی و تکنولوژی
Longwall Mining
Coal Mining (Field Of Study)
dideo
دیدئو
typical
underground
longwall
coal
mine
development
layout
دیدئو
dideo
