Move the throttle stick back to mid position-- swashplate moves to the mid point of its travel. 將油門操縱桿移動到中間，傾斜盤移動回行程的中點。
The color gradient is a smooth shading of colors from the center point of the path to the outside boundary edge of the path. 彩色漸變是從路徑的中點到路徑的外邊界邊緣的平滑的彩色漸變。
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