管壁材料的折射率越大，测量体的位置与管壁厚趋时位移差也越大。
If the refractive index is larger, the translocation difference of the measurement volume is larger.
另外，研究结果表明组成光子晶体的两种材料的折射率差别越大，两种电磁模的禁带越宽，越容易产生完全光子禁带。
The results of study also shown that the biger difference of refractivity between two kinds of materials, the wider of the bandgap for two electromagnetic modes, and easier to produce full bandgap.
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。
With the increase of the periods and the absolute value of refractive index difference, the full width at half maximum of spectrum decreases.
折射率的比值越大，则禁带越明显。
The larger the ratio of refraction index, the more obvious is the band gap.
要得到折射率为- 1的情况，则入射光归一化频率越小，光子晶体的波导宽度要相应越大。
To obtain refractive index of -1 decreasing the incident light frequency and enlarging the waveguide width are both necessary.
小球的半径、折射率越小，以及环境的粘滞系数越大，小球轨迹的振荡越弱，收敛速度越快。
Smaller particles and larger viscosity of surrounding medium resulted in less oscillation and faster convergence to the parabolic line.
小球的半径、折射率越小，以及环境的粘滞系数越大，小球轨迹的振荡越弱，收敛速度越快。
Smaller particles and larger viscosity of surrounding medium resulted in less oscillation and faster convergence to the parabolic line.
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