Thee design, called the Yerka, looks like an average bike, but the bottom tube of the frame can be split into two parts and wrapped around a pole.

这款自行车名为ǀ“尤科”，看上去跟普通自行车没什么两样，但车身底杆可以分成两部分，环绕在一根柱子上。

youdao

When we increase the potential between the 2 electrodes that we have in the tube -- we actually split the h 2 into the individual hydrogen atoms, and not only do that, but also excite the atoms.

当我们增大两个电极之间电压,我们有-我们可以把氢气2,分解成单个的氢原子，不仅这样，还能激发原子。

麻省理工公开课 - 化学原理课程节选