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nose-down adj. 【航空】機首朝下的。2.vi. 把機頭朝下。

nose-led

If this load centroid is behind the elastic axis of the wing structure, then a nose-down twist of the main wing surface results . 如果該載荷重心在機翼結構彈性軸之后,則引起主機翼表面前端向下的扭轉。