A “mighty mouse” with double the normal muscle strength has been created by scientists looking for ways to treat age-related diseases.

据英国《每日邮报》11月11日报道，科学家在寻找治疗老年性疾病的方法时，创造出了一种肌肉力量是平时两倍的“大力鼠”。

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The optimal mathematical model of the double universal spindle must satisfy the constraints of strength, rigidity, vibration condition, stability and boundary condition.

双万向轴的优化数学模型必须满足强度、刚度、振动条件、稳定性及边界条件的约束。

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Calculating procedures and formulas of double circular tooth strength for cold metal saw are given in this paper.

给出了较为完整的双圆弧锯齿的强度计算步骤和计算公式，以供锯片的设计、制造者参考使用。

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With a confidence borne of years of Tabasco abuse, I've plumped for the double-X chilli, a mid-strength choice that is awarded a "beware" on the menu.

BBC: The perfect chilli con carne in the heart of Texas

Fitch Ratings cut FGIC's financial strength rating Wednesday to double-A from triple-A, and it did the same to Ambac earlier this month.

FORBES: Bond Insurers Need Help--Fast

That is roughly double the strength of George Bush's much-vaunted (and much-delayed) stimulus in the United States.

ECONOMIST: Prudence gets its reward