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Fig. 1


Infrared images of H II regions from 8.0 μm to 500 μm for three representative sources. Shown are G346.875+0.328, G310.994+0.389, and G307.736 − 0.594 from top to bottom. The images for G346.875+0.328 and G307.736 − 0.594 are 5′ on a side while those of G310.994+0.389 are 12′ on a side.

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