Fig. 5
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Column density of the various molecules from the ALMA Band 7 observations (PILS; ~345 GHz) as a function of those from Band 3 (~100 GHz). Beam dilution was corrected for the column densities in this figure. Dashed lines present where the values of the y-axis are the same as the values of the x-axis, where they are ten times higher and ten times lower than the values of the x-axis.
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