- 1、Overhandstopingindicatesworkingfromalowertoanupperlevel;underhandstopingistheopposite,fromanupperleveltoalowerlevel.2、Thereareseveraltechniquesforworkingthefaceofthestope.Overhandstopingindicatesworkingfromalowertoanupperlevel;underhandstopingist...
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