Mechanical and Electrical stuff

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Across
  1. 4. second part of a band
  2. 5. fastens nuts and bolts
  3. 6. is used to transfer electricity
  4. 9. turns things on and off
  5. 10. pointy item to join two parts
  6. 13. converts mechanical energy to electrical energy
  7. 15. potential difference
  8. 16. transmitting power via fluids
  9. 17. protects circuits
Down
  1. 1. electrical network of electrical components
  2. 2. first part of a band
  3. 3. force applied to a surface
  4. 4. used to bore holes
  5. 5. high heat process to join to metals
  6. 7. fastens screws
  7. 8. used to cut something apart
  8. 11. fluid to protect from overheating
  9. 12. portable energy storage
  10. 13. is used to seal to joined objects
  11. 14. a unit to measure pressure