puzzle

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Across
  1. 1. entropy
  2. 2. supply air
  3. 5. safeguard the boiler
  4. 9. attack is larger than design angle
  5. 10. decreasing compressorwork
  6. 12. compressed air device
  7. 14. pre-heat the air
Down
  1. 1. regulate the flow of steam
  2. 3. Record the pressure
  3. 4. right angle
  4. 6. used in aircraft
  5. 7. velocity is zero
  6. 8. heat up steam
  7. 11. increasing kinetic energy
  8. 13. forced liquid into boiler