为了改善光纤激光器的输出光束特性，将光纤端面加工处理成近似凸球面。
In order to improve the beam properties of fiber lasers, the fiber-end surface is processed similar to a convex spherical surface.
径向球面滑动轴承由一个具有凸球形外表面的内圈和一个具有相应凹球形内表面的外圈组成。
Radial spherical plain bearings have an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered but concave inside surface.
通过改进拉伸凸模结构，提高球面轴承座模具加工质量。
Through improving the punch structure, improved the spherical surface bearing housing die machining quality.
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