So we proposed a DC-DC converter with new structure comprised by a fractional charge-pump.

针对这个缺点，采用分数增益电荷泵，实现高效率开关电容式DC-DC转换的设计方案。

youdao

For a pure scalar potential the zero energy bound state does exist, and the fractional charge does exist.

对于纯标量场，存在零能量束缚态，存在分数电荷。

youdao

Quarks, the particles from which atomic nuclei are made, were reckoned to have such fractional charges, but since it is impossible to isolate a quark, its charge cannot be measured directly.

ECONOMIST: The 1998 Nobel prizes