The level of the provincial key laboratory open fund is the same level of the three verticals. According to the relevant public information, the opening funds of key laboratories generally belong to provincial and ministerial funds, and the key projects of the Natural Science Fund of the Provincial Science and Technology Department and the Provincial Education Department are at the same level as the three types of vertical projects. Open-end funds are also called * * * mutual funds abroad, which are isomorphic with closed-end funds and form two modes of fund operation. Open-end fund refers to a fund operation mode in which fund sponsors can sell fund shares or shares to investors at any time according to their needs, and can redeem the issued fund shares or shares at the request of investors.