That's the analog of the position vector.

那是和位矢相似的情况

耶鲁公开课 - 基础物理课程节选

One of the labors of reading Paradise Lost is the reader's obligation to supply the analog for the X, and this poem is filled with such X's.

读的一个麻烦就是,读者需要自行类比出X究竟是什么，偏偏诗中又充满了这种不确定物。

耶鲁公开课 - 弥尔顿课程节选

This is the securities' analog of the FDIC in banking.

IPC之于证券业,如同FDIC之于银行业

耶鲁公开课 - 金融市场课程节选