基本解释方差互换英汉例句双语例句Investors can take part in a “variance swap”, whereby one counterparty agrees to receive implied volatility and the other receives realised.投资者可以参加一种叫“差异互换”的衍生品机制，藉此交易双方达成协议，一个接收隐含波动，另一个接收实际波动。variance swap更多例句专业释义经济学方差互换