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., ...
Levitation. Maglev trains have no contacts with the rails while they move forward. They are levitated on the guide-way with the help of magnetic forces. Levitation is the process by which an object is suspended against gravity in a stable position without any physical contact.
because the magnets keep it aloft, meaning theres no friction from the ground. Maglev trains travel so fast because they do not have any wheels or rails to cause friction. This is also due to the fact that electromagnetism is one of the stronger forces in our universe, much stronger than the force of gravity! Bethany Roots.