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ECCJ / Text Thailand

Q12. From among the following descriptions (1) to (5) of the furnace pressure, choose correct ones.
Q13. From among the following descriptions (1) to (5) of the furnace pressure, choose correct ones.
Q14. From among the following descriptions (1) to (4) of the heat dissipation from openings, choose correct ones.
Q15. From among the following descriptions (1) to (5) of heat dissipation from the furnace wall, choose correct ones.
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