Through contrast, analysis, expounding and proving several machining methods for both space plane of front car housing from technical and economic angle gains the optimum processing plan.

针对前桥壳体的两个空间平面的加工问题，从技术和经济的角度，时比、分析、论证多个加工方法，获得较佳工艺方案。

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By means of spherical graphics and plane trigonometry, space angle and space point coodinates are calcullated for three sets of combined fixtures as examples.

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。

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If you could look down upon the solar system plane from outer space, you'd see that the sun, Earth and Jupiter form a 90-degree Angle today.

如果我们能从太阳系外观察，会发现今天的木星和太阳以地球为交点呈90度角。

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