以某歼击飞机前起落架为例，用落震试验的方法，通过分析起落架有关参数随机轮转速变化的情况，来研究飞机着陆瞬间起落架的状况。

The status of an undercarriage at the touchdown instant is studied by analyzing the undercarriage parameters which change with the wheel rotational speed in the drop test.

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其实，爱情是一件相当寂寞的事，就象夹在指间的香烟。除却燃烧的短短瞬间，它的来处，是不为人知的一隅，等待某根手根将它拈起；

Abatement burning short is short instantaneous, its come place, is one corner which the manner does not know, waits for some root picks up it;

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