relay; repeating; relaying; repeat; trunking◇中继电话 trunk call; 中继电路 repeat circuit; 中继交换台 [讯] tandem switching; 中继卫星 repeater satellite; 中继线路 trunk; repeater中继线中继: tr trunk relay层中继: layer relay出中继: outward trunk带中继: tape relay短中继: short wave relay下载手机词典可随时随地查词查翻译