Rotating the disc of the compound rest with an angle equal to half the apex angle of the cone.
将复式刀架盘旋转一个等于圆锥体顶角一半的角度。通过摇动复式刀架操纵柄手动提供进给。
Based on prodution feature of angles, the flow of pass apex Angle and pass waist for the finished Angle was probed.
根据角钢生产特点，探讨了角钢成品孔型的构置问题，包括孔型顶角、孔型内跨圆弧、孔型腰部等因素的影响程度。
Taking cordierite and topaz for example, the specific cone-apex Angle values are given, and the reason why the cone-apex angles are too small is analyzed.
并以堇青石和黄玉为例给出了具体的锥顶角数值大小，分析了锥顶角很小的原因。
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