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.
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.
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