又或者说不断上升的能源成本和恶化的环境灾难让人类付出了惨重代价。

Or suppose there is a slow decline as soaring energy costs and worsening environmental disasters take their toll.

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我国的经济增长在某种程度上是以生态环境恶性破坏的高成本为代价的。

To some extent, the economic growth in our country is based on the high costs on the deliberate destroy of the ecological environment.

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电压安全成本作为维持系统电压安全、稳定需要额外付出的经济代价，成为市场环境下成本分析与研究中的一个重要内容。

Therefore, with the change from vertically integrated environment to power market, the estimation of security cost and pricing security become very important.

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