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hanfeng215

木虫 (正式写手)

[求助] 大气环境源解析类两句a factor of two to three

Normalizing the hopanes by EC to account for differences in atmospheric dilution reveals that the hopanes are a factor of two to three higher in the winter than in the summer.

If the data are sorted by season, the R2(相关性的值) values for the lower concentration days improve to about 0.6, though the summer and winter slopes are different by over a factor of two; this reflects the distinct seasonal pattern in the ratios of the different hopanes to EC.

尤其是画线部分,理解不了。
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weichin

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hanfeng215: 金币+5, 翻译EPI+1, ★★★★★最佳答案, 原来是表示倍数,谢谢 2013-05-08 09:15:54
供参考:
冬季的hopanes含量是夏季含量的2-3倍,即冬季必夏季高出1-2倍。
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2楼2013-05-07 22:25:48
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