Across
- 2. touch
- 5. grand demonstration
- 7. keep
- 10. assemble
- 11. essential
- 12. supersonic aircraft
- 19. to ask for a day off
- 20. industry
- 22. engineering
- 23. to attend
- 24. in fact
- 26. military
Down
- 1. refrigerator
- 3. communicate
- 4. indispensible
- 6. profile
- 8. link
- 9. social networks
- 13. talking robots
- 14. shyness
- 15. to penetrate
- 16. to exceed
- 17. to run risks
- 18. rocket
- 21. inauguration
- 25. each time