... wide-band coma 宽束彗[形象]差 wide-band communication system 宽频通信系统 wide-band filter 宽带滤波片，宽带滤波器 ...
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移动通信的迅猛发展，对应用于无线通信系统的天线提出了小型化、宽频带、多频段工作等要求。
With the great development of wireless communication, there comes great demand of multi-frequency and broadband antennas of compact size.
本发明公开一种宽频全向吸顶天线，包括：用于完成移动通信系统信号 的室内覆盖，包括：金属底板；
The invention discloses a wideband omnidirectional ceiling antenna which is used for finishing the indoor signal coverage of a mobile communication system.
CAS通信自动化系统，综合布线、宽频网路、移动电话楼内覆盖系统、有线电视及数字程控电话系统。
CAS (communication Automation system) includes cabling system, broadband network system, mobile phone coverage system, cable TV and digital communication system.
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