Bore hole drilling machine (DDW-600) DDW-600 drilling rig is the integral steel-tracked chassis model with powerful mobile capability; advanced negative feedback 1  ... DW/TXS Construction Equipment (Beijing) Co., ...
Maglev trains are trains which are suspended, guided and propelled (moved forward) by magnetic forces. The track of the maglev train is called the guide-way. Working of the maglev trains can be studied under the following. 1  Levitation. 2  Propulsion. 3  Guidance.
The crew in the caboose kept an eye on the train in front of them to watch for hot-boxes (over-heated axle bearings) and other problems. Now there are trackside hotbox and dragging equipment detectors (automatic), and trains use roller bearings as opposed to the old friction bearings.he crew in the caboose kept an eye on the train in front of them to watch for hot-boxes (over-heated axle bearings) and other problems. Now there are trackside hotbox and dragging equipment detectors (automatic), and trains use roller bearings as opposed to the old friction bearings.