Approach midline lights: precision approach lights of CAT I, II and III shall be extended to the runway threshold at least () meters, with lamp spacing of () meters.
A.300, 30 B.600, 30 C.600, 60 D.900, 30正确答案D
Approach midline lights: precision approach lights of CAT I, II and III shall be extended to the runway threshold at least () meters, with lamp spacing of () meters.
A.300, 30 B.600, 30 C.600, 60 D.900, 30正确答案D
