Should there be any trouble with the boiler, the automatic controlling unit would cut off the fuel oil supply.
假如锅炉出问题的话，自控装置会自动切断燃油的供给。
Controlling oil unit operation cost is a mainly method for petroleum enterprise to conduct cost budgeting and controlling.
原油单位操作成本控制是石油企业进行成本预算与控制的主要手段。
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