The seven-day reverse repo is a central bank tool to inject liquidity.
七天逆回购是中央银行注入流动性的一种工具。
货币银行学(视频版)
And it's actually called a reverse repo, from your point of view.
实际上 从你的角度来说 它是一个逆回购协议。
经济学人 Finance and economics
In 2013, money market funds were given access to the Federal Reserve's Reverse Repo facility, in which they receive securities overnight in exchange for cash, a facility that was expanded during the COVID-19 pandemic.
A sale (and) repurchase agreement, also known as a (currency) repo, RP, or sale and repurchase agreement, is a transaction concluded on a deal date tD between two parties A and B:
(i) A will on the near date tN sell a specified security S at an agreed price PN to B