Mathematics in table tennis

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Across
  1. 3. The deduction method of table tennis
  2. 5. The relationship between two side table tennis desk
  3. 8. Table tennis table is not adjacent to two sides of the relationship
Down
  1. 1. Like a ping pong
  2. 2. How do the judges determine the mistakes in the table tennis match?
  3. 4. The shape of the table tennis table
  4. 6. The scoring method of table tennis
  5. 7. The four angle of the table tennis table