着陆航向信标定向阵列天线的英文

localizer directional array antenna

• 着陆:    landing; land; tou ...
• 航向:    -方位指示器 course-and- ...
• 信:    letter; mail
• 标定:    demarcate; calibra ...
• 向:    direction
• 阵列天线:    array antenna