We take out the copper foil, aluminum foil, some plastics.

我们取出铜箔、铝箔和一些塑料。

In order that the foil does not fall apart, each transparent ring is actually a series of curved slots in the copper rather than a continuous gap.

为了不让铜箔散开，每一个透明环实际都是铜箔里一系列曲线轮槽，而不是连续空隙。

Once she has enough rocks to get the ball, the water level will now be high enough to complete the electrical circuit with these two pieces of copper tape.

一旦她收集到足够使球浮起，水位便会升高到足以用这两片铜箔完成电路。