这架飞机在接近着陆时没有出现在雷达上的事实让我感到担忧。
The fact the plane has not appeared on radar when it neared land gives me cause for concern.
K波段传感器也更不易于受到来自机场着陆系统以及飞机和舰船雷达的干扰。
K-Band sensors are also less susceptible to interference from airport landing systems and air or sea craft radar.
在灯火管制情况下，在整个接近、盘旋和着陆过程中，HALS系统可以向UH - 60飞行员提供着陆区的连续三维实时雷达图像。
The HALS system provided the UH-60 pilots with continuous 3d real-time radar imagery of the landing zone throughout the approach, hover, and landing in complete brownout.
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