Plagiarism is the act of representing another person's words or ideas as your own.

VOA: special.2009.04.16

So this series is broken into two terms that are conveniently representing two physical ideas.

所以这一串式子将变为两项,这两项代表了两种物理作用。

麻省理工公开课 - 固态化学导论课程节选