| 摘要 |
The apparatus includes a temperature detector, a micom, a smoke detector, a gas detector, an alarm sound driving part, a zero cross pulse inputting part, a ventilation fan driving part, a door motor driving part, a lamp driving part, a clock generator, a state indication driving part and a hand-operational input data part, thereby maintaining stably the driving of the ventilation fan and preventing the danger of explosion in advance.
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