The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic 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。
Antifouling protective films are formed on the surfaces of porcelain tiles, and thus porcelain tiles having favorable antifouling property and high surface brightness can be produced out.
在陶砖表面形成一层防污保护膜，能够制造出具有较好防污性能并有较高表面光亮度的瓷质抛光砖。
Antifouling protective films are formed on the surfaces of porcelain tiles, and thus porcelain tiles having favorable antifouling property and high surface brightness can be produced out.
在陶砖表面形成一层防污保护膜，能够制造出具有较好防污性能并有较高表面光亮度的瓷质抛光砖。
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