宰牲亭,是古代皇家祭地前宰杀祭祀用的牲畜(犊、冢、羊、鹿)的场所。每逢祭祀前一天子时初刻,在此举行宰牲仪式。门内两侧原有井亭各一座。
Slaughter Pavilion (Zai Sheng Ting)
The slaughter Pavilion is the place where animals (bulls, pigs, goats, and deer) are slaughtered, on the day before the main sacrificial rite day, as sacrificial offerings to Earth.