- 散光: astigmatism; astigmia
- 光柱: light pillar (日柱); light cross (日晕)
- 散光: [医学] astigmatism; astigmia◇散光灯 flood; floodlight; 散光光度计 light-scattering photometer; 散光计 astigmatometer; astigmometer; 散光矫正镜 hydrodiascope; 散光描记器 astigmagraph; 散光目镜 diverging ocular; 散光者 astigmat
- 复光柱: multiple beam
- 光束,光柱: light beam
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