Static electricity is produced when two materials rub together and exchange electric charges.

当两种材料相互摩擦并交换电荷时， 就会产生静电。

This causes the PTFE and copper to exchange electric charges, producing a current.

这会导致 PTFE 和铜交换电荷， 从而产生电流。

The exchange charges fees on these transactions and customers can store their cryptocurrencies that they own while they hopefully accumulate value.

交易所对这些交易收取费用，客户可以存储他们拥有的加密货币，同时希望能积累价值。