As the name implies, risky assets refer to risky assets. Such as stocks and corporate bonds. (Value will change, income will fluctuate, etc. );

First-line quasi-principal generally refers to the cash and reserves of banks in the central bank. Second-line words should refer to assets such as national debt (I'm not sure about this, but it seems to refer to some recognized assets that are risk-free and can be quickly realized);

On-balance-sheet assets refer to loans (this is the main), stocks, bonds and other assets; Off-balance-sheet assets are assets generated by intermediary business, such as management fees charged for helping others manage funds, income from providing guarantees and so on.

By analogy, on-balance-sheet risk assets and off-balance-sheet risk assets refer to the corresponding risk assets.

In addition, the risk assets stipulated in the Basel Accord are generally weighted. I remember there should be a table, such as how much AAA bonds are multiplied, and how much ordinary corporate bonds are multiplied. There are clear rules.