face vary with shaft angle because of the connection between the curved surface of columnar reflecting surfaceand the decentration shaft.
面与偏心轴关系,使接收面与反中心距离、反面光线入角随轴角而变化。
face vary with shaft angle because of the connection between the curved surface of columnar reflecting surfaceand the decentration shaft.
面与偏心轴关系,使接收面与反中心距离、反面光线入角随轴角而变化。
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