1) frequency conversion
频率变换，变频
2) frequency conversion
频率变换
1.
The lithium thioindate(LiInS_2) crystal is an attractive material,which can be widely used for nonlinear optical frequency conversion in the infrared region.
LiInS2晶体是一种极具吸引力的晶体,可以应用于红外区域的非线性光学频率变换。
2.
The theoretical calculation of frequency conversion in a new bismuth triborate (BiB3O6) crystal with high nonlinear optical (NLO) coefficient is present.
理论计算了新型高非线性光学系数三硼酸铋晶体(BiB3O6)中的频率变换。
3.
This paper presents a new type of low noise frequency conversion circuit based on the research of phase noise conception, generation as well as relativity measurement method.
本文在对相位噪声的概念、产生及其相关测量方法研究的基础上,设计出一种低噪声频率变换电路。
3) frequency transformation
频率变换
1.
Design of impedance transforming-network by frequency transformation;
频率变换法设计阻抗变换器
2.
The Research and Realization of AD Frequency Transformation Based on DSP;
基于DSP的AD频率变换的研究与实现
3.
Diode is one of the nonlinear elements which are usually used in electronic circuit,whose speciality of frequency transformation is widely used in communication system.
二极管是电子电路中常用的非线性元件,其频率变换特性在通信系统中得到广泛的应用。
5) frequency domain transformation
频率域变换
6) Zooming Fast Fourier Transform
复频率变换
补充资料：变换器式频率表(见交换器式电表)
变换器式频率表(见交换器式电表)
transducer type frequency meter
曰‘口，”IuullqISn}P旧iUbloo变换器式颇率表meter)(transdueer tyPe见变换器式电表。frequeney
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条