selective flotationselective miningselective mining unitself potential methodself rescue masksemi autogenous millsemi stable groundsemitrailersensitivityseparationseparation densitysericitic alterationserie connection networkserie connection of capsserie parallel connection of capssetsettling coneshaftshaft sinkingshaking screenshaking tableshankshape factorshear failureshear foldingshear modulusshear wavesshear zonesheetingshieldshield bodyshield cutting edgeshield supportshield tailshield tunnelingshiftshock energyshock lossshock waveshort delay detonatorshortwall mining methodshot firershot holeshotcreteshovelshovel loadershoving jacksshrinkage stopingshut off headshuttle car
