如果该载荷重心在机翼结构弹性轴之后，则引起主机翼表面前端向下的扭转。
If this load centroid is behind the elastic axis of the wing structure, then a nose-down twist of the main wing surface results.
如果该载荷重心在机翼结构弹性轴之后，则引起主机翼表面前端向下的扭转。
If this load centroid is behind the elastic axis of the wing structure, then a nose-down twist of the main wing surface results.
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