The Great Recession and its surge of long-term unemployment are a severe test of what was once seen as a distinctive US economic strength.
大萧条以及美国长期失业率飙升，是对曾被视为美国经济独特优势的严峻考验。
Based on it, the formulae of contact strength of mesh points between the movable teeth and the surge wheel, the movable teeth and the internal gear are derived.
在此基础上导出了活齿与激波器、活齿与内齿轮啮合处的接触强度的公式；
A weak pound could also explain Britain's renewed economic strength, much as a surge in the yen has increased worries about Japan.
英镑的弱势也解释了英国得以复原的经济活力，这跟日元飞涨让日本忧心忡忡是一个道理。
The preventive measures to the surge should be worked out according to its strength and harm features.
对涌浪的防范，应根据其强度和危害特点来确定。
The preventive measures to the surge should be worked out according to its strength and harm features.
对涌浪的防范，应根据其强度和危害特点来确定。
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