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| Chinese | English |
| "兰双子座" | "Blue Gemini" (无人驾驶反卫星卫星(美)) |
| "双先锋" | "Twin Pioneer" (运输机(英)) |
| "双刃刀" | "Claymore" (地对地导弹(美)) |
| 双向无线电通信 | twoway radio |
| "双子星座" | "Gemini" (航天飞船(美)) |
| "双水獭" | "Twin Otter" (DHC-6、CC-138 运输机(加拿大)) |
| "双红运" | "Twin-Bonanza" (L-23联络机(美)) |
| 双边带调幅 | amplitude modulation, double sideband |
| "双野马" | "Twin-Mustang" (F-82战斗机(美)) |