表面亮度 [天] surface brightness
- 它们具有较高的表面亮度,同时还有比正常情况小的半径。
That is, they have higher surface brightnesses and smaller radii than is normal for their luminosities . - 全新高强度铝合金金属结构,有效防止变形及保持表面亮度。
The new high-strength aluminum alloy structure, effectively prevent the deformation and maintain the surface brightness. - 极大的射电流量同极小的角经集于一身,意味着这些发射源有难以置信的高表面亮度。
The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness.
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