A-basis A-基值 abbreviated visual approach slope indicator system (AVASIS) 簡式目視進場下滑指示系 統 abeam (ABM) 正側方（與飛具成直角）;橫 向 aberration 像差;光行差 aberration; annual 周年光行差 aberration of light 像差;光行差 aberration; optical 視差;像差 absolute error 絕對誤差 absolute humidity 絕對濕度 absolute inclino