在每次更换机油，机油滤清器也必须换掉。

The oil filter must also be changed at every oil change.

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因此，机油滤清器，确保只有清洁油进入发动机。

Thus the oil filter ensures that only clean oil enters the engine.

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系统装置还可做为燃油滤清器和机油滤清器使用。

The system device can be used as a fuel filter and a machine oil filter.

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系统装置还可做为燃油滤清器和机油滤清器使用。

The system device can be used as a fuel filter and a machine oil filter.

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