open drop method

例句：

1. 1. The open drop method is a techniqueused to determine the concentration of a solutionby adding an excess amount of a knownvolume of a solvent and measuring the volumeof the solution that remains.
   开放滴定法是一种技术，通过向已知体积的溶剂中添加过量的溶液并测量剩余的溶液体积来确定溶液的浓度。
2. 2.In this method, a small amount ofthe sample is added to a test tubecontaining a known volume of a solvent,and then the mixture is shaken orstirred until the sample has completely dissolved.
   在这种方法中，一小份样品被添加到含有已知体积溶剂的试管中，然后混合物被摇动或搅拌，直到样品完全溶解。
3. 3. The opendrop method is often usedin analytical chemistry to determinethe concentration of substances in solutions, as it provides a precise and accurateway to measure the volume of the solutionthat remains after the addition of the solvent.
   开放滴定法在分析化学中常用于确定溶液中物质的浓度，因为它提供了一种精确和准确的方法来测量加入溶剂后溶液剩余的体积。