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Common fire scenes at McDonald's include
Common future scenes of restaurants are:

1, the oil pan is on fire. The trace characteristics of oil pan fire are mainly "U"-shaped fire marks and smoke marks left on the wall corresponding to the oil pan on the stove.

2. When the fuel leaks and catches fire, the trace characteristics of gas explosion mainly include: large drop, inconspicuous smoke trace and no obvious explosion point. The collapse direction of the building is consistent with the direction of the explosion shock wave.