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宇宙气泡状结构 bubble structure of the universe
The apparent density, the bubble structure and the tensile strength were studied.
研究了无卤阻燃聚乙烯泡沫塑料的表观密度、气泡结构、力学性能等物理性质。
参考来源 - 无卤阻燃聚乙烯泡沫塑料的制备与性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
图像右下部的显著特征是红色的复杂气泡结构。
Particularly striking is the red, intricate bubble in the lower right part of the image.
气泡结构的光谱呈现出峰值能量高于全天区弥散伽马射线的状态。
The bubbles display a spectrum with higher peak energies than that of the diffuse gamma-ray glow seen throughout the sky.
不论怎样，气泡结构肯定是在过去一千万年内或者更近的时期形成的。
Either way, the bubbles must have formed only within the last 10 million years and perhaps much more recently.
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