The high temperature and high pressure airflow generated by the pulse engine is sprayed at high speed from the outlet of the nozzle, and when the raft is opened, the air pressure in the medicine box hydraulically presses the medicine into the outbreak tube, mixing with the high temperature and high speed airflow, at the moment of meeting, the medicine is crushed and atomised into smoke from the nozzle, and together with the smoke agent quickly spreads and diffuses, when the object to be controlled comes into contact with this smoke, it plays the role of control and treatment