... goniophotometric curve 测角光度曲线 graded index 陡度折射率 graded refractive index 陡度折射率 ...
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... graded index 陡度折射率 graded refractive index 陡度折射率 graded-index glass fiber 陡度折射率玻璃纤维 ...
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陡度折射率 graded index; graded refractive index; gradient refractive index 陡度折射率玻璃纤维 graded-index glass fiber ..
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