1, the full name of the self-funded fund is the National Natural Science Foundation. In the early 1980s, the National Natural Science Foundation was put forward by 89 academicians of the Chinese Academy of Sciences in a letter to the CPC Central Committee and the State Council, with the aim of promoting the reform of China's science and technology system and changing the allocation of scientific research funds.

2. Labor cost refers to the labor wages that a person should pay to complete the task on time according to the requirements of work quality, quantity and time.

3. Expert consulting fee refers to the consulting service fee paid after experts answer and solve major difficult problems such as technical problems, difficult problems and solutions.