The fire is believed to have been caused by an oil heater.

这场火灾据认为是由于煤油暖气炉引起的。

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Therefore, we should not lubrication oil heater is right choice.

因此，应正确选择油加热器。

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Vehicle oil heater is one of the main equipments for heating bus in winter.

汽车燃油加热器是冬季客车采暖的主要设备之一。

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