At a mine

5. It is a wheeled vehicle used for transport in mines
6. cage, It brings miners to the bottom of the mine and takes them up after the shift.
9. It is a piece of equipment that makes a bomb explode
10. hoist, It is a machine that hoist objects by winding a rope around a drum
11. drill, It is a drill that pounds material in order to break it up and allow for easier drilling
12. line, A queue in which vehicles wait to receive or deliver material
14. It is a railroad with one rail from which the train hangs.
16. It is a system that removes dangerous air and provides fresh ar in a mine
17. Mechanical supports include timber sets, steel .... , and yieldable steel arches.

1. troughs = a long thin structure or a channel where miners place material to send it downwards.
2. It is a continuous moving piece of rubber or metal used to transport objects from one place to another
3. fluid, It is a liquid that cools down the drill bit and washes away loose material in a borehole.
4. It is a small passage in a mine that a man passes through.
5. 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.
7. rig, It is a drilling rig that creates large holes
8. point, It is a place where vehicles unload the materials they were carrying.
9. Design safe ... system for the disposal of waste water.
10. balls, It is a large, heavy ball that is used to break oversize stones into smaller pieces
13. 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.
15. It is a tool used for navigation.