After testing different combinations, they chose two materials that worked: a silver-plated yarn that can light up and a kind of thread that conducts electricity.
在测试了不同的组合后，他们选择了两种有用的材料：一种可以发光的镀银纱和一种导电的线。
2
Others struck in silver-plated base metal will cost much less.
其他只是镀银的将比较便宜。
3
The look is completed by solid brass and silver-plated candelabra parts and a scale wheel.