"Nuclear is an essential alternative" to coal, he said. "it's the only one that can provide the same quality of electricity at a similar scale in the medium and long term."

他说，“核能是煤炭的重要替代物，它是中长期内唯一能够在近似规模提供同等质量的电力的新能源。”

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All large and medium-sized Chinese cities will have greater air quality monitoring by 2010, says a government official.

一位政府官员表示，到2010年，中国所有大中型城市的空气质量监测都将得到加强。

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With its high standard of living safe cities sunny climate and outdoorsy citizens Australia also has the best quality of life among medium-size countries.

澳大利亚的生活质量很高，治安良好，气候宜人，其国民爱好户外活动，这一切使得它的生活质量在人口规模中等的国家中摘得桂冠。

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SanDisk's new distribution channel addresses a wider portion of the market by delivering high-quality SanDisk SSD technology to small and medium-sized businesses, a growing market segment for SSDs.

ENGADGET: SanDisk releases Ultra Plus and X110 SSDs with speed on a budget

For example, shows can be watched in one of four video-quality levels (low, medium, high or auto), but people might not know what their network is capable of playing.

WSJ: For Live TV on the Go, Aereo Is Impressive But Limited