Anamorphic prism pairs are designed to expand a beam in only one dimension, circularizing the elliptical output from a diode.
变形棱镜组可用来扩散一个方向的光束,可将激光二极管发出的椭圆光进行圆整。
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This is one of many ways of visualizing the "circularizing of the armpit chest, " and lifting of the chest. Do these actions every time you come into this transitional posture.