Search U.S. government technical reports digitized or harvested by TRAIL.
Surface testing and evaluation of the monorail bridge conveyor system
Surface testing and evaluation of hopper-feeder-bolter
Protective structures for low-coal shuttle car operator
Integrated compartment-machine design for low-coal shuttle cars
Coal extraction, transport, and logistics technology for underground mining
Surface testing and evaluation of the multiple-unit continuous haulage system
Preliminary analysis of methodologies for mining thin-seam mountaintop coal resources