The colour index difference Q decreases with the increase of d.
随着子源间线距d的增大，色指数差q下降。
With the increase of the periods and the absolute value of refractive index difference, the full width at half maximum of spectrum decreases.
介质折射率差的绝对值越大、周期数增加都使透射波谱宽度变窄。
Objective To discuss the index difference of sensitivity of 64-slice spiral ct in diagnosing coronary artery stenosis in the elderly and the young.
目的探讨64层螺旋CT在诊断老年及中青年冠状动脉狭窄的敏感性等指标的差异。
In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.
文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。
In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.
文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。
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