Across
- 4. sewer systems
- 7. steam engine
- 8. potophone
- 13. job evaluation programs
- 14. gas
- 16. underground aquifer
Down
- 1. detailed instructions
- 2. prosthetics
- 3. mechanical arm
- 5. multipurpose solar grid
- 6. clocks
- 9. mobile games
- 10. spacecraft
- 11. cameras
- 12. hydraulic mathematic models
- 15. heating systems