| 1. | A wavefront at high radio frequencies or optical frequencies impinging on the atmosphere is distorted .
高射电频率或光学频率的波阵面进入大气时受到畸变。 |
| 2. | Ofdm optical frequency division multiplexing
光频分复用 |
| 3. | Absolute optical frequency measurement
绝对光频测量 |
| 4. | Measuring the relative dielectric constant of dupont 100hn and 100cr polyimide film under optical frequency
两种聚酰亚胺薄膜光频相对介电常数的测定 |
| 5. | " for their contributions to the development of laser - based precision spectroscopy , including the optical frequency comb technique
表彰他们对基于激光的精密光谱学发展作出的贡献 |
| 6. | Chapter 4 . the fully distributed temperature multimode step - index fiber optic sensor based on spontaneous raman optical frequency - domain reflectometry is developed
第四章，研究了基于自发raman散射的多模阶跃光纤的全分布式温度传感器系统。 |
| 7. | Chapter 6 , the fully distributed temperature single mode step - index fiber optic sensor based on spontaneous raman optical frequency - domain reflectometry is developed
第六章，研究了基于自发raman散射的单模阶跃光纤的全分布式温度传感器系统。 |
| 8. | By comparison of dielectric constant at low frequency with that at optical frequency , it proves that the dielectric polarization of a - c : f films mainly comes from the electron polarization
根据低频和光频介电常数的比较，发现- c : f薄膜的介电极化主要来源于电子极化。 |
| 9. | It ' s focus on optical frequency measurement inland and abroad . it ' s very significance to exploit a kind of new method in optical measurement for establishing optical frequency standards
光频测量是国内乃至国际上关注的热点，开发新的光频测量方法对光频标的建立有着非常重要的意义。 |
| 10. | Chapter 5 , the fully distributed temperature multimode graded - index fiber optic sensor based on spontaneous raman optical frequency - domain reflectometry is further developed by two methods
第五章，分别用两种不同的算法研究了基于自发raman散射的多模梯度光纤的全分布式温度传感器系统。 |
