What do you mean by four liters of glutinous rice and three liters of glutinous rice?

Four liters of glutinous rice and three liters of glutinous rice mean that officials at that time were required to receive standard glutinous rice and glutinous rice rations. This is an ancient unit of measurement. Specifically, "four liters of glutinous rice" means that officials receive four liters of glutinous rice every day, while "three liters of glutinous rice" means that officials receive three liters of glutinous rice every day. The quantity of these rations will change according to different dynasties and periods, but at that time, these rations were one of the fixed benefits received by officials and also a kind of treatment for officials by the court.