According to the above situation, in order to eradicate the peculiar smell of the automobile air conditioner, the evaporation box must be disassembled and the surface of the evaporation box must be cleaned, including some series of components such as ventilation pipes, so that the problem of peculiar smell of the automobile air conditioner can be eradicated. However, this method has a disadvantage. Each disassembly requires a series of processes such as fluorine release, fluorine addition, disassembly and installation, which are troublesome, technically difficult, inefficient, long working hours and high cost.
2. Avoid the infinite expansion of the Context, the logic of state switching is distributed in the state class, and the original excessive conditional branches in the Context are also removed.
