What does public welfare mean in teacher recruitment?

Public welfare refers to the units or institutions that undertake basic public welfare services such as compulsory education, basic scientific research, public culture, public health and basic medical services at the grassroots level, and cannot or should not allocate resources by the market.

The second kind of public welfare refers to a kind of public institution that should meet the following conditions: providing public welfare services to the society, charging fees according to the price of public welfare services determined by the government, and its resources can be allocated through the market in a certain region or degree. Such as ordinary colleges and universities and non-profit medical institutions.