Engineers

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Across
  1. 3. jets
  2. 4. what you eat
  3. 6. printing and trees
  4. 8. wires
  5. 9. pipelines
  6. 10. planning for new buildings
Down
  1. 1. Pacemaker
  2. 2. planes
  3. 5. rigs
  4. 7. trains