基于一个平面的制件将由适合在夹具或装置的二定位销的二个孔明确地位于。
A workpiece resting on a flat surface will be definitely located by two holes which fit over two locating pins in the jig or fixture.
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.
采用平面公自转行星夹具镀制户外照明用大面积光学薄膜，计算了光学薄膜膜厚的均匀性，经测试得到均匀性的结果。
Flat planetary holder is used in big area optical film for outdoor lighting and film thickness uniformity is counted in this paper. The result of uniformity is gained after testing.
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