1. When purchasing a graphics card, you need to issue an invoice, and indicate the purchase date, quantity, amount and other information on the invoice.

2. After purchasing a graphics card, you need to fill in the equipment list part of the "National Natural Science Foundation of China Application Form", include the purchased graphics card and other equipment in the list, and indicate the name, model, and Quantity, unit price, total price and other information.

3. When the project is completed, a fund reimbursement application needs to be submitted, and the equipment list and the invoice for purchasing the equipment must be submitted to the financial department for review and reimbursement.