息: breath的: 4次方是 The fourth power of 2 i ...情况: circumstances; situation; co ...下: below; down; under; undernea ...研究: study; research一种: one kind; one type; one spec ...合适: suitable; appropriate; becom ...传输: transfer; transmission; conv ...与: take part in; participate in交换: exchange; swap; interchange; ...方式: way; fashion; pattern数据传输与交换: dtas data transmission and switching传输线路交换方式: transmission line switching system获得…的情况下: arm 2在…的情况下: in…situation包交换方式: packet switching mode交换方式: swap mode在没有…的情况下: without在明知…的情况下: in the knowledge that你一定要有那种合适的纸: all electronic computers consist of five units although they are of different kinds报文交换方式: message switching scheme长途交换方式: trunk switching scheme同步交换方式: handshake mode应急交换方式: emergence switching自动交换方式: auto-swap mode