核技术应用生产经营单位使用放射源的场所和生产放射性同位素的场所，以及终结运行后产生放射性污染的射线装置，应当依法实施退役。
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Webb's sharper view also hints at possible jets from the central star. The dark lane and the way gas appears to push outward near the top of the nebula suggest an ejection that may be shaping the cloud's symmetry, a common feature when aging stars throw material in opposite directions.
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