bó / wù / guǎn / de / shuō / míng / pái / jiè / shào / le / róng / chéng / hóu / zhè / ge / jìng / zi / de / gǔ / chēng

博物馆的说明牌介绍了“容成侯”这个镜子的古称。

The museum display introduced “容成侯” as an ancient name for a mirror.