Crossword of professional text

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Across
  1. 3. when you are building something you are doing ...
  2. 5. something that needs to be done in order to make a device etc.
  3. 7. for example something changes optically
  4. 9. needs maintenance to work properly
  5. 10. this is what keeps the machines running
  6. 11. opposite to parallel
  7. 12. detects for example part which goes past it
Down
  1. 1. mikroprosessori
  2. 2. analoginen
  3. 4. used in engineers work daily
  4. 6. Needed for building a machine or a device etc.
  5. 8. toimilaitteet