Ordinary funds are flawed and will be ordered to rectify by the regulatory authorities. General funds are very strict in the examination and approval process. General fund is the most basic funded project in natural science foundation, also known as general fund, and it is the main part of natural science foundation series. Engineers engaged in basic scientific research voluntarily choose topics, carry out innovative scientific research in the fields funded by the National Natural Science Foundation, and realize balanced, coordinated and sustainable development of all departments.