bó / wù / guǎn / de / shuō / míng / pái / jiè / shào / le / gǔ / rén / yòng / qīng / zhuó / jì / sì / shén / líng / de / xí / sú博物馆的说明牌介绍了古人用清酌祭祀神灵的习俗。The museum sign describes the ancient custom of using ritual wine to worship the gods.