翻译：上述监测结果验证了2号餐厅在日间及夜晚部分时段的流量优势性且其餐厨行为下产生的污水中34S与排水片区末端污水中34S的高度相关性这解释了排水片区末端污水中34S的变化规律：其在全监测周期中整体均高于自来水本底中34S水平仅于夜间部分时段发生相较本底的指标削减。

The above monitoring results confirm the flow advantage of Restaurant 2 during certain periods of the day and night, and there is a high correlation between the δ34S in the wastewater generated by its kitchen behavior and the δ34S in the wastewater at the end of the drainage area. This explains the variation pattern of δ34S in the wastewater at the end of the drainage area, which is consistently higher than the δ34S level in the tap water background throughout the monitoring period, with only a reduction in comparison to the background during certain nighttime periods