...a man interviewed in one of our studies whom we shall designate as E. …一个我们在一项研究中采访过并会将其命名为E的男人。
Designate someone as the spokesperson. 指派某人为发言人。
If you want to designate a period, you have to look at tangible things like pottery, particularly painted pottery, because it's easier to categorize. 如果你想标注某段时期,你必须借助有形的事物,就像陶器,尤其是彩绘陶器,因为它们更容易分类。