The secondary impact acceleration pulse which is produced by the drop-test can influence the testing parameters and cause fatigue and damage of components.

凸轮式跌落冲击台产生的次冲击能够影响试件的测试参数和性能，并能造成试件的疲劳损伤与失效。

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While fibromyalgia does not damage the joints or organs, the constant aches and fatigue can have a significant impact on daily life.

虽然纤维肌痛并不会损害关节或器官，但持续的疼痛和疲劳会对日常生活产生严重影响。

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Therefore, it is necessary to analyze the mechanism of the fatigue damage of bridge expansion device and estimate its fatigue life by theories and experiment.

因此有必要通过实验及理论研究等工作，对公路桥梁伸缩装置进行疲劳破坏机理分析和疲劳寿命估算。

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These include fatigue, infertility, and damage to the lungs and heart.

BBC: Cancer survival: Macmillan hails major improvement

In December Celgene won approval for its second drug, Revlimid, the product of a 13-year quest to develop a version of thalidomide that would be as potent against cancer but would lack most of the old drug's side effects, such as nerve damage and fatigue.

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