COpref.共同；一起；联合abbr.公司（=company）abbr.郡；县（=county）abbr.指挥官（=Commanding Officer）coarct[医] 紧压

1. Methods Potentiometric titration method was used in this assay.
   方法采用电位滴定法。
2. The free fluorion content in liquid multi-vitamin was quantitatively analyzed by using a simple potentiometric titration.
   使用简单的电位滴定法定量分析维生素中游离氟的含量。