1) low frequency medium frequency
低频中频
2) low-medium frequency electrotherapy
低中频电
1.
Objective To investigate the effects o ultrashort wave and low-medium frequency electrotherapy on the patients with disc hernia after surgery.
目的观察超短波联合低中频电治疗腰椎间盘突出症术后神经功能恢复的临床疗效。
3) low-IF
低中频
1.
A Novel Image Cancelling Algorithm for Low-IF Scanners;
低中频扫频接收机中的一种去镜频干扰方法
2.
Design and implementation of a 5th Butterworth LPF in Low-IF GPS receiver
低中频GPS接收机中低通滤波器的设计与实现
3.
9GHz down-conversion CMOS mixer with a novel folded Gilbert cell,intended for use in GSM1900(PCS1900) low-IF receivers,is fabricated in a RF 0.
介绍了一种0·18μm CMOS工艺基于GSM1900(PCS1900)标准低中频接收机中的混频器。
4) low IF
低中频
1.
An RF front-end circuit for a fully integrated CMOS DTV tuner is presented in this paper,where double-conversion low IF architecture is employed.
该电路采用二次变频低中频结构,集成了低噪声放大器、上变频混频器、下变频混频器等模块。
5) L/MF (low and medium frequency)
低中频率
补充资料：低都儿低
1.低而又低，很低。
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