检查位于燃油输送泵前的三通燃油切换阀，并转换到MDO侧。
Check 3-way fuel oil selection valve located before fuel oil pump unit and change the 3-way valve to MDO/MGO side.
在供热设备中用做燃油，燃油供应和输送泵。
In heating equipment used as fuel, fuel supply and transfer pump.
热设备中用做燃油喷油，燃油供应和输送泵。
Thermal equipment used in the fuel injection and fuel supply and transfer pump.
热设备中用做燃油喷油，燃油供应和输送泵。
Thermal equipment used in the fuel injection and fuel supply and transfer pump.
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