程序发送机tra mitter: 变送器; 变速器; 传导物质;传递介质; 递质; 发射机; 发射器tra istor tra mitter: 晶体管发射机airborne tra mitter: 机载发射机aircraft tra mitter-receiver: 飞机无线电收发两用机ark tra mitter: 火花式发射机下载手机词典可随时随地查词查翻译