tri-, 三，-ad,单倍，单体，词源同 monad.

1. Self - knowledge in this case a perspective on the entire triad.

在这重意义上, 自我 认识成了透视[自己、世界和上帝]这个三元体系(triad)的一个视角(perspective).

2. For the faculty, there exists the triad of responsibilities: teaching, research, and service.

教员要承担三重责任：教学、研究与服务。

3. This coordinate system is called the triad at the point.

这个坐标系叫做该点的三面形坐标系.

4. Diagnosis is based on a clinical triad.

本病诊断取决于临床上的三征.

5. No individual or organization is consciously concerned with the triad of economic problems.

任何个人和机构都不是有意识地关心到三位一体的经济问题.