特别是如果电视机与天线距离超过超过20英寸(6米)，就得考虑买一个内置信号放大器的天线。
Think about buying an aerial with a built-in signal amplifier, especially if the television set is more than 20 feet (six metres) away.
是一个电视信号放大器，用于连接岸线电视信号。
It is a TV signal amplifier, to be connected to shore line TV signal.
寻求先进、高效、实用、稳定、可靠的UHF电视发射机高频线性功率放大器，至今仍是一个十分重要的技术课题。
Pointed out that it is a very important subject to look for the advanced, high-efficiency, useable, stable, reliable high linear power amplifier of UHF TVtransmitter by now.
针对有线电视网双向改造的需要，设计了一种电路简洁、性能优良、成本低廉的双向放大器。
Aimed at the need of CATV network bi-directional transform, designed a kind of bi-directional amplifier with succinct circuit, cheap cost.
本文论述了应用最优化算法机辅设计电视接收机视放末级放大器的方法。
In this paper, the computer aided optimizing design of the video amplifier in TV set is described.
本文论述了应用最优化算法机辅设计电视接收机视放末级放大器的方法。
In this paper, the computer aided optimizing design of the video amplifier in TV set is described.
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