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1·Pilots must rely on visual flight rules that are often referred to as' see and avoid. '.

飞行员必须依靠常被称为“看到并避开”的目视飞行规则。

2·A civil aircraft performing visual flight shall observe visual flight rules and keep a safe separation from other aircraft and ground obstacles.

进行目视飞行的民用航空器，应当遵守目视飞行规则，并与其他航空器、地面障碍物体保持安全距离。

3·It indicates that fighter pilots acquire information mostly from the OV in VFR (visual flight rules) condition and most of their visual attention is allocated to the outside world.

表明视觉飞行规则下，战斗机驾驶员主要从外景获取视觉信息，他们的大部分注意力都集中在外景。