单选题Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）Adouble bottom fuel oil tank temperatureBheater supply steam flowCpressure of the fuel supplied to the burnersDattemperator steam flow in the heater discharge circuit
单选题
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
A
double bottom fuel oil tank temperature
B
heater supply steam flow
C
pressure of the fuel supplied to the burners
D
attemperator steam flow in the heater discharge circuit
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