This vehicle can achieve synchronous, precise, and even distribution of liquid asphalt (binder) and crushed stone aggregates, breaking the traditional two-step process of "first spraying asphalt, then spraying crushed stone", ensuring instant contact between fresh asphalt and crushed stone, maximizing the bonding strength between the two, forming a strong mechanical interlocking structure, suitable for core scenarios such as road sealing, preventive maintenance, and minor disease repair. It can effectively cure problems such as poor oil, falling particles, and slight network cracks on the road surface, and extend the service life of the road.