slide wire

基本解释

To extend the unit, remove rope, untie the original wires, add the new wire between the two, and slide the wire through all the sections.
扩展单位长度，解开原来的钢丝，在中间添加新的钢丝，让各部分的钢丝穿过闸阀。
rayelab.com
The error analysis on the result obtained by using the two different ways in which slide wire Wheatstone is used to measure the unknown resistance is conducted.
本文对用滑线式惠斯登电桥测未知电阻的两种测量方法所得结果进行误差分析。
This article set out to discuss the principle of slide wire bridge and overall analysis on the most advantageous condition and the reliability of internal resistance.
本文从讨论滑线式电桥的构成原理出发，全面分析了滑线式电桥测量的最有利条件及阻值的可信度。

So you can imagine a bead with a wire going through it and the bead can only slide back and forth.
你可以想象一个穿在绳子上的珠子,小珠只能前后滑动
耶鲁公开课 - 基础物理课程节选

In his dress blue uniform and wire-rimmed eye glasses, the slightly built Manning followed a slide show of the prosecutor's hour-long opening statement, watching on a laptop computer at the defense table.
NPR: Prosecutor: Manning Dumped Info Into Enemy Hands