Temperature's measured

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Across
  1. 3. ENERGY / 7
  2. 6. /10
  3. 9. / 5
  4. 10. / 4
Down
  1. 1. / 1
  2. 2. / 8
  3. 4. TUBES / 9
  4. 5. / 6
  5. 7. / 3
  6. 8. DIOXIDE / 2