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This crystal was a new promising nonlinear optical material.
该晶体是一种很有前途的非线性光学材料。
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The optical question of liquid crystal display is a fundamental question.
液晶显示中的光学问题是一种基本问题。
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Optical and Electric Glass, Crystal, Film.
光电玻璃，晶体，薄膜基材。
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Optical and Electric Glass, Crystal, Film.
光电玻璃，晶体，薄膜基材。
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