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hanfeng215木蟲 (正式寫手)
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[求助]
大氣環(huán)境源解析類兩句a factor of two to three
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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(相關(guān)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. 尤其是畫線部分,理解不了。 |

鐵桿木蟲 (職業(yè)作家)

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