The endpoint error formula which takes the form of Ringbom's error formula and involves the effect of the precipitation indicator in the precipitation titration has been derived.
在考虑了沉淀指示剂的影响下，推导出了以林邦误差公式形式表示的沉淀滴定终点误差的计算公式。
2
Method to decrease the indication error and the design of the indicator.
减少指示误差与指示器的设计。
3
In embedded SQL, an indicator variable is set to -2 for the column or columns that cause the error.