空间角度（Space angle），把立体几何学的异面直线所成的角、直线与平面所成的角、平面与平面所成的角，统称为空间角度。
Applying MDT API,the method of the developing CAD system is discussed with emphasis on. The spherical triangle arithmetic is presented hi the fixture assembled vision calculation of space angle.
重点讨论了应用MDT API进行CAD系统的开发方法,提出了球面三角算法在夹具组装中空间角度的可视化计算中的应用方法。
参考来源 - 基于MDT API的夹具立体组装CAD技术·2,447,543篇论文数据，部分数据来源于NoteExpress
用轴测投影图与球面三角相结合求解空间角度，具有精度高和解题迅速的特点。
Axonometric drawing and spherical triangle combined to solve space Angle has the characteristic of high precision and produces rapid solution.
运用球面图法及平面三角法，计算了三种组合夹具实例的空间角度及空间点的坐标。
By means of spherical graphics and plane trigonometry, space angle and space point coodinates are calcullated for three sets of combined fixtures as examples.
通过对大量空间角度的自动计算和自动绘图检验，证明了方案具有简便、精确和通用的特点。
By having used computer calculation and illustration of automatic graph plotter to test plenty of space angles, the scheme proved to have the feature of simple, convenient, precision and general.
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