| 单词 | precision approach radar |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔ground-controlled approach〕A control mode in which an aircraft is talked down for landing through the use of surveillance and precision approach radar.地面进场控制：通过监视和运用精密进场雷达引导使飞机降落的控制方式美国传统 |
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