Engineers

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Across
  1. 1. chemical plants
  2. 3. zones
  3. 9. highway
  4. 10. mechanical movement
  5. 16. nuclear power plants
  6. 17. inflatable space house
  7. 18. trains
  8. 19. railroads
  9. 20. network
  10. 21. oil rigs
  11. 23. plumbing
  12. 24. air systems
  13. 25. computers
  14. 26. satelites
Down
  1. 2. factory system
  2. 4. geothermal plants
  3. 5. flying
  4. 6. petrolium
  5. 7. pillows
  6. 8. covid vaccine
  7. 11. kinetic sand
  8. 12. quality products
  9. 13. wind tunnels
  10. 14. circuits
  11. 15. X-ray machines
  12. 22. yielding