This can be a useful function when landing at night in combat at an airfield without an ILS glide slope.

这个方法会非常有用尤其在夜间降落而没有ILS滑翔轨迹指导时。

ILS guidance indication is changed to 2 circles that must be inside each other to be on the glide slope and localizer.

着陆导航系统引导指示改成2个圆圈，它们必须重合才满足下滑道和方向定位的要求。

Nine seconds later, the warning changed to a current alert, indicating the track had passed below the glide slope altitude.

九秒钟之后，警告转变成连续不断的警报，指示航迹已经低于下滑道高度。

APPROACH MODE, An autopilot/flight director mode which is a combination of localizer for roll control and glide slope for pitch control.

进近方式， 一种综合了控制横侧的航道信号和控制俯仰下滑信号的自动驾驶／飞行指引方式。

Air traffic controllers use this information of glide slope and center line deviation to guide the pilot for a precision instrument landing.

空管员使用下滑角和中心线偏差等信息引导飞行员进行精密仪表着陆。