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| 无线电指点标 (用来识别空间中沿航线或对仪表跑道进近的某个特定位置。这通过一个75 MHz 的发射机来实现,它发射的定向信号被从上方飞过的飞机接收。这些指点标通常与航路导航设备以及仪表着陆系统一起使用作为点指示器) | |||
| 无线电指点标 | |||
| 无线电导航信号发射台无线电标志信标; 标志无线电信标 | |||
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radio marker beacon : 9 phrases in 4 subjects |
| Aviation | 1 |
| Electronics | 3 |
| Space | 1 |
| Technology | 4 |
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