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【多选题】
在波片中
A.
快轴是指传播速度较快的o光或e光的传播方向。
B.
快轴是指传播速度较快的o光或e光的振动方向。
C.
快轴是指传播速度较快的o光或e光的光矢量方向。
D.
快轴是指波片的光轴方向。
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B.
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