| 单词 | double refraction |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔optic axis〕An optical path through a crystal along which a ray of light can pass without undergoing double refraction.光轴：通过晶体的一条光路，通过它光线可以不经双折射而通过美国传统〔uniaxial〕Having one direction along which double refraction of light does not take place. Used of a crystal.单轴晶体的：有一个方向的，沿此方向不发生光的双折射。用于晶体美国传统 |
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