Then they added very small electrical connections underneath the surface of the foam.

然后，他们在泡沫表面下添加了微小的电极。

Once the pathway is established, the lineman replaces the electrical connection held by the wand with metal clamps.

一旦通路建立起来，线路员就用金属夹子代替了棒上的电连。

Both interrupt the electrical connection between your finger and phone.

两者都会中断手指和手机之间的电气连接。

The electrical connections sense these changes and send information about them to a computer, which then tells the robot what to do.

电极感知到这些变化，并将相关信息发送给计算机，然后计算机告诉机器人该做什么。

They designed and optimized all parts of the car, from electrical connections to the chassis and battery.

他们设计并优化了汽车的所有部件，从电气连接到底盘和电池。

Estimates vary, but a tonne of PCBs could contain 150 grams or more of pure gold, which, because it does not tarnish, produces stable electrical connections.

估计数字各不相同， 但一吨 PCB 可能含有 150 克或更多的纯金，由于金不会失去光泽，因此可以产生稳定的电连接。

Difficult words: feat (an achievement that requires great courage, strength, or skill), circuit board (a set of electrical connections fixed onto a surface), chassis (the base frame of a car).

困难的词：壮举（需要巨大勇气、力量或技巧的成就）、电路板（固定在表面上的一组电气连接）、底盘（汽车的底架）。