In dr nersesian 's titration the litmus was a species called the brushtail possum .
涅尔谢相博士的滴定实验中的“石蕊指示剂”是一种叫帚尾袋貂的动物。
Titration , to remind those who dozed through their chemistry lessons , is a way of working out the concentration of a substance in a solution .
滴定法(为了给那些在化学课上打过瞌睡的同学们提个醒)是一种计算溶质在溶液中的浓度的方法。
And a group of researchers led by carolyn nersesian of the university of sydney has just borrowed one of chemistry 's most elegant techniques , titration , to answer a pressing ecological question : how do animals choose where to feed ?