She came up bearing a pair of vintage sunglasses, dark with pale blue plastic frames.

她带着一副老式太阳镜走上前来，深色太阳镜带有浅蓝色塑料镜框。

When we switched on the voltage, the rubber deformed, and just like our biceps flexes our arm, the rubber flexed the plastic frame.

当我们打开电压时， 橡胶会变形，就像我们的二头肌弯曲我们的手臂一样， 橡胶也会弯曲塑料框架。

We connected it to a high-voltage source, and we placed it near a transparent piece of rubber that was prestretched onto a plastic frame.

我们将它连接到高压电源，然后将它放在一块预拉伸到塑料框架上的透明橡胶附近。