桥式放大器CATV中继线电缆中安放的一种放大器，用于馈接分支电缆。
Bridge amplifier an amplifier installed on a CATV trunk cable to feed branching cables.
现行的从电缆主干线上取得分支线的方法就是切断主干线，将干线两头和所分的支线一同压接后包裹起来，或是将分支线绑轧在主干线上。
The current method to branch wire from the cable trunk is to cut off the trunk line, and crimp two ends of trunk line and the required branch, and pack them, or to bind the branch line to trunk line.
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