異頻雷達收發機

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

Character by character

• 異(yì)different
• 頻(pín)frequency
• 雷(léi)surname Lei
• 達(dá)surname Da
• 收(shōu)receive
• 發(fā)send out
• 機(jī)surname Ji