This kind of boiler is very safe. If it were to go wrong, the controlling system would cut off the fueloil supply automatically.
这种锅炉很安全。万一锅炉发生故障，控制系统会自动切断燃油的供给。
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The reliability lab ship fueloil donkey boiler controlled by relay control system is evaluated using counting method, and mean time to failure (MTTF) of the control circuit is educed.