一轴晶是指只有一个光轴的非均质体，其光轴平行结晶轴c轴。光沿光轴方向入射时不发生双折射。
最后对一轴晶进行了讨论，结果表明此时光轴方向与光线轴方向一致。
It indicates that the direction of ray axis and optical axis is identical by discussing the uniaxial crystal at last.
用几种分光光度计研究了一些一轴晶矿物平行和垂直于主光轴方向的吸收程度。
Degree of absorption along and perpendicular to the main optical axis was studied for some uniaxial minerals, using several types of spectrophotometers.
柱状晶向等轴晶转变（CET）是在一定的凝固过程中必须控制的一种显微组织转变。
The columnar to equiaxed transition (CET) is a kind of microstructural transformation in certain solidification, which should be controlled.
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