At the overall market level, momentum effects help to explain why bubbles develop.

就市场总体来说，动量效应有助于解释泡沫的形成。

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They also believed that if they could move forward with agile processes, they would gain momentum in convincing the greater project to move to an agile methodology overall.

他们还相信，如果他们能够推进敏捷流程，他们将有动力说服更大的项目整体改用敏捷方法。

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We also saw good momentum with premium subscriptions as a result of the overall lift [of membership] on the platform and some continued optimization of the existing product portfolio.

而由于平台(会员数)的整体提升以及现有产品组合持续优化，付费订阅也势头强劲。

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"Overall its earnings momentum remains intact, " said Lee Se-chul, from Meritz Securities in Seoul.

BBC: Samsung profits driven by Galaxy smartphone sales

From a green perspective, as cloud computing gains momentum, the overall carbon footprint of SMEs should decrease considerably.

FORBES: Cloud Computing's Hidden 'Green' Benefits

"GM's strong finish in 2012, the industry's momentum and the overall health of the US economy make us optimistic about 2013, " said sales chief at GM Kurt McNeil.

BBC: US car sales rise 13.4% to hit five-year high