If the price is 1.0225/ 1.0228, the same number can be omitted. It means that the former is the buying price and the latter is the selling price, but the main body of this transaction is the bank, which means that you buy dollars and the bank sells dollars, so the price is1.0228; You sell dollars and the bank buys them, so the price is 1.0225.
But as far as this symbol is concerned, as you can see, it is a separator without other meaning.
This is theoretical ~ for reference only ~