two wire line circuit 二线式线路电路
impedance of two-wire line 两线式传输线阻抗
two-wire line 双线传输线 ; 双线线路
two wire trunk line 二线式中继线
If do big specification line, two outlet open, so that strengthen the cooling effect of the copper wire.
如果做大的规格线，两个出水口都要打开，这样加强铜线的冷却效果。
STA5 subscriber line is applied to subscriber line interface of programmed control digital switches, and two wire analogy remote interface of access network.
STA5型用户板用于数字程控交换机的用户接口，也可做为各类接入网系统的远端二线模拟接口。
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.
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。
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