It shows graphically the relation between polar and phasial voltage in a Three-phase electric power system 极地和 phasial 电压之间的关系
Each circle represents an individual. The thin border around each circle represents what you notice first (readily detectable characteristics). The inside of each circle underlines all deep-level characteristics someone has (e.g., personality, attitudes, education, perspectives, skills, etc.). Anyone is free to interpret the meaning of each color, because we all have different perceptions. 相似性的吸引力 抽象 团体之间的关系 抽象的吸引力相似性