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Fig. 9
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Ratios of non-LTE frequency-integrated line intensities to LTE values 
in typical ultra-compact (ne = 104 cm−3 and EM = 5 × 107 cm−6 pc), compact (ne = 5 × 103 cm−3 and EM = 107 cm−6 pc), and extended (ne = 1 × 102 cm-3 and EM = 105 cm−6 pc) H II regions for Te = 10 000 K.
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