English for Engineering unit 13

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Across
  1. 1. related to aircraft and flying
  2. 3. shaping metal by pouring it into a mold
  3. 6. to crush or grind materials into smaller pieces
  4. 7. the joint between the leg and the body
  5. 8. remove completely
  6. 9. a point that slows down a process
Down
  1. 2. real or existing in fact
  2. 4. a substance added to improve or change something
  3. 5. careful checking or examination