At a mine

5. fluid, It is a liquid that cools down the drill bit and washes away loose material in a borehole.
7. Mechanical supports include timber sets, steel .... , and yieldable steel arches.
8. cage, It brings miners to the bottom of the mine and takes them up after the shift.
9. balls, It is a large, heavy ball that is used to break oversize stones into smaller pieces
10. Design safe ... system for the disposal of waste water.
14. It is a small passage in a mine that a man passes through.
16. It is a piece of equipment that makes a bomb explode

1. It is a wheeled vehicle used for transport in mines
2. drill, It is a drill that pounds material in order to break it up and allow for easier drilling
3. line, A queue in which vehicles wait to receive or deliver material
4. It is a small piece of metal that is used with a nut (= metal piece with a hole in the middle) to connect pieces of wood or metal together.
6. It is a system that removes dangerous air and provides fresh ar in a mine
10. hoist, It is a machine that hoist objects by winding a rope around a drum
11. It is a tool used for navigation.
12. It is a railroad with one rail from which the train hangs.
13. Those are the waste left over from extracting minerals. They are usually stacked in a big pile. It often looks like a hill or mountain.
15. It is a continuous moving piece of rubber or metal used to transport objects from one place to another
16. point, It is a place where vehicles unload the materials they were carrying.