by John R. Bartels
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Bending fatigue tests 2 and 3 on a 2-inc...
Flywheel-powered shuttle car
Improved underground rerailing apparatus
Integrated compartment-machine design fo...
Protective structures for low-coal shutt...
Entry stabilization utilizing rib boltin...
Relationships between annulus thickness ...
Transfer mechanics of full-column resin-...
Kotvení důlních strojů a zařízení...
Stress distribution around resin-grouted...