It is a symbolic representation of particular aspects of a physical system, and its chief use is to predict the behaviour of the latter. (religion-online.org)
This role allows the teacher to steer the direction of the dialogue to ensure that the conversations stay focused on particular aspects of the curriculum. (catlintucker.com)
Sometimes «of counsel» refers to senior or experienced attorneys, such as foreign legal consultants, with specialized experience in particular aspects of law and practice. (en.m.wikipedia.org)