Across
- 3. engineering
- 7. design
- 8. design
- 9. evalt
- 11. develop chewcal
- 13. testing
- 15. defins
- 16. methods
- 17. make am aircraft
- 18. new machines
- 19. quality
- 21. finding
Down
- 1. unsuspected
- 2. finding
- 4. Develop power production
- 5. make better
- 6. make ways for cells
- 10. develop
- 12. xray servius
- 14. better safety
- 20. move