飞机受到垂直阵风的影响会产生不希望的法向过载。
Encountering a vertical gust environment the plane will get unexpectful longitudinal load.
再将规定的力沿着与椅背垂直的方向通过载入垫施加于载入点上。
And then provides the force perpendicular to the direction along the back pad by loading imposed on the load point.
在桌面易于发生破坏的位置，按规定的力通过载入垫，垂直向下重复施加10次。每次至少应保持10秒。
On the most easy damaged position of the desk surface , to impose the specified force by loading pad, vertical put down repeated 10 times. Keep 10 seconds at least.
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