mechanics

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Across
  1. 4. Pipe splitting flow.
  2. 6. Current in one direction.
  3. 9. cylinder motion term.
  4. 10. A substance reducing friction."
  5. 12. Temperature where oil ceases flowing.
Down
  1. 1. Vertical ship partition.
  2. 2. Tool for tight bolts.
  3. 3. Rotational force term.
  4. 5. roud, prevents leaks.
  5. 7. Device spraying fuel.
  6. 8. Top piston position.
  7. 11. Converts A/C to D/C.
  8. 13. Unit for electric resistance.