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งานกลุ่มที่5

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งานกลุ่มที่5

  1. 1.  4
  2. 2.    
  3. 3.  5 8  2.1 2  2.2
  4. 4.  2.3   1. 5 2. 3. 4. 5.
  5. 5.  2 1 2 (CFL)
  6. 6. 1 2 (thermostat)
  7. 7.
  8. 8. 1. 2.

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