exchangesn.票据交换总额名词exchange的复数形式.exchangev.交换；兑换n.交换；交易所；兑换；交战exchange noise局内噪声exchanger cell离子交换槽exchange force交换力exchange train小运转列车exchange clock交换机时钟exchanged heat传递热,转化热exchanges rate汇率Exchange chain交错链exchange logic交换逻辑exchange cover外汇储备