高频光谱 high-frequency spectrum
低频光谱 [光] low-frequency spectrum
光学频谱 spectrum ; widmo optyczne ; spektri
表面和频光谱分析系统 Sum Frequency Generation
宽频光谱椭圆偏光法 Broadband pectroscopic Ellipsometry
泛频光谱 overtone spectroscopy
频振动光谱 SFG ; SFG-VS
超高频光谱学 ultrahigh-frequency spectroscopy
红外和频光谱 sum frequency generation
光频外差光谱学 optical heterody spectroscoy
拉曼光谱是一种分子散射光谱，通过与分子相互作用的光子产生的表征分子振动或转动能级差的特征频移，来反映分子结构或成分的信息。
Raman spectrum is a kind of molecule scattering spectroscopy, which is characterized by the frequency excursion that caused by interactions of molecule and photon to show the information of molecule.
频跳是传播光谱通信技术，意思被分离入更小的部分以便更好运用总可利用的光谱。
Frequency hopping is a spread-spectrum communications technique, meaning that the total available spectrum is split up into smaller sections so as to be better utilised.
而后又进行了移频，并对调制转移光谱进行了噪声分析。
Finally, analysis of the noise is obtained, from which we can improve the system.
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