Rotation angle symbol method to identify circuit and branch of spherical four bar is presented in this paper. Finally, the method about application to spatial first group mechanism is elaborated.
最后由空间第一类机构与球面四杆机构的等效性，阐述了将此识别方法应用于第一组空间机构的方法。
ANGLE White: White angel is a spectrum of all colors including the color of light, Generally considered to be "colorless" and symbol bright and clean, fun, simple, elegant and chastity.
天使白：天使白是一种包含光谱中所有颜色光的颜色，通常被认为是“无色”的，象征明亮干净、畅快、朴素与贞洁。
Author pays attention to analyze synthetically the faith construction, thinking habit and characteristics of the suicide from the Angle of ritual and symbol.
作者从仪式和象征的角度对自杀者的信仰结构、思维习惯和个性特征给予综合分析。
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