top slicing methodtoppling failuretoppling loadtotal analysistotal hardnesstotal porositytotally reflectiontower milltrace elementstrace sliptrack minetrack rollertrackless minetrackmantraction efforttractive resistancetractortrailertrammel screentramming capacitytransform faultstranslation slidetransmission coefficienttransported soilstransverse faulttransverse wavestransverse zonalitytrapdoortree flotationtrenchtrenching machinetrend surface analysistri flo separatortriangle methodtriaxial stress fieldtriptriple junctiontrippingtrolley wiretropopausetropospheretrough linetroughing idlertrucktruck dispatching systemtrue burdentrussen rock bolttrust faulttube milltumbling charge