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| 精密进近航路指示器; 精确进场进近航路指示器; 精确进场 进近航路指示器 (在飞机进近人跑道时，能够提供目视下降导引信息的一组灯光系统。这个系统与目视进近下滑道指示器 (VASI )相似。然而灯光系统是以每排2个或4个灯光安置在跑道的左侧。这些系统的有效距离，在白天是5m,而在晚上可达20m 以上) | |||
| 精密进场航道指［显］示器 | |||
| English thesaurus | |||
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| A visual glide slope indicator VGSI consisting of four light units normally situated on the left side of the runway on both sides of the runway, in the case of the military in the form of a wing bar and indicating that the aircraft is on slope if the two units nearest the runway show red and the two units furthest from the runway show white, too high if all units show white, and too low if all units show red. (VGSI) | |||
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| PAPI | |||
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precision approach path indicator : 2 phrases in 1 subject |
| Aviation | 2 |