The line of sight must be approximately perpendicular to the horizontal axis. 視線(xiàn)必須近似地垂直于水平軸。
Moving the elevators out of their faired position causes the airplane to change the pitch attitude about the lateral axis. 移動(dòng)升降舵離開(kāi)它們的流線(xiàn)型位置，使得飛機改變水平軸上的俯仰姿態(tài)。
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