Mechanical engineering

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Across
  1. 1. machines usually resembling humans that do human tasks
  2. 5. a subject involving numbers
  3. 7. machines or equipment made by scientific knowledge
  4. 8. a machine that detect movement in an environment
  5. 12. the use of several machines to manufacture
  6. 13. a branch of mechanics that deals with forces
  7. 14. to take an already existing thing and make it better
Down
  1. 2. usually a blue paper with drawings to explain how something is made
  2. 3. to build
  3. 4. to make something on a large scale
  4. 6. to check the performance or its reliability
  5. 9. to plan
  6. 10. a machine failing to function properly
  7. 11. to spectate and observe a thing
  8. 15. to trace and fix mechanical or electrical issues