not more than

至多, 不超过, 不比 ... 更 ...

例句与用法：

A particle, such as an electron, a proton, or a neutron, having half-integral spin and obeying statistical rules requiring that not more than one in a set of identical particles may occupy a particular quantum state.

费密子一种如电子、质子或中子等自旋为半整数的基本粒子，具有一种使得不可能有多于一个的粒子占有任何一个特殊的量子力学态的量子力学对称性

It is not more than ten minutes' walk from the station.

由车站走到这里最多十分钟的路程。

It is not more than thirty miles from London as he crow flies.

从这里到伦敦，直线距离至多30英里。

I'll stay here not more than three days.

我将待在这里最多不超过三天。