Assistant experimenter, experimenter (equivalent to a lecturer). Senior experimenter (equivalent to associate professor). Professor-level' researcher-level senior experimenter' (some schools are established in an exceptional way, but only high). There are three levels in this profession: Level 4, Level 3 (physics and electronics), Level 3 (chemistry and biology), Level 2 (physics and electronics) and Level 2 (chemistry and biology).

Among them, the biological laboratory is the place where biology-related experiments are carried out. With the stricter quality control requirements, the demand for constant temperature and humidity environment is increasing, and the application fields are getting wider and wider. There are biological laboratories in general schools, and blood test laboratories in hospitals are also biological laboratories. Usually, people enter the biology laboratory for study and research, and are graded according to different research objects. A * * * is divided into four levels, the lowest level and the highest level.