异频雷达收发机

1. • transponder
2. • electronic device that responds to a radio code

Character by character

• 异(yì)different
• 频(pín)frequency
• 雷(léi)surname Lei
• 达(dá)surname Da
• 收(shōu)receive
• 发(fā)send out
• 机(jī)surname Ji