Hainan Provincial Grain School, Hainan Industrial Secondary Specialized School, etc. Official website, Education Bureau of Hainan Province, inquired that two-year technical secondary schools include Hainan Grain School and Hainan Industrial Technical Secondary School. Technical secondary school, referred to as technical secondary school for short, refers to a vocational school established with the approval of relevant government departments according to law and implementing full-time secondary education, including public and private general technical secondary schools, adult technical secondary schools and technical secondary schools affiliated to colleges and universities. According to the classification of schools, secondary specialized schools are divided into two categories: ordinary middle schools and adult middle schools.