Decision HEIGHT (DH) 2, an altitude used during a precision approach to trigger the decision of either landing or go-around.
决断高(DH)2，精密进近时产生继续着陆还是复飞决定的高。
Decision HEIGHT (DH) 2, an altitude used during a precision approach to trigger the decision of either landing or go-around.
决断高(DH)2，精密进近时产生继续着陆还是复飞决定的高。
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