You'll notice that the argument e is passed implicitly.

您也许会注意到 e 参数是隐式传递的。

youdao

A persistent closure of a managed root entity x is defined as the set of managed entities C(x) ={e}, where e is reachable from x directly or indirectly via a persistent relationship.

管理根实体 x 的一个持久化闭包被定义为一个管理实体集 C(x) ={e}，其中 e 可以直接或间接通过一个持久化关系从 x 访问。

youdao

E is for experience. Experience is the best teacher.

代表经验。经验是最好的老师。

youdao

That was the song "Discoverer." Like many R.E.M.songs, this one is poetic with a meaning that is not always clear.

VOA: special.2011.03.18

So we can figure out the energy of each photon emitted by our UV lamp by saying e is equal to h c over wavelength.

所以我们可以计算出,每个从紫外光源射出的光子,也就是e等于h乘以c除以波长。

麻省理工公开课 - 化学原理课程节选

This e term here is the energy, or in our case when we talk about an electron in a hydrogen atom, for example, the binding energy of that electron to the nucleus.

这里的“E“是指能量，或者在我们谈论一个,氢原子的电子时，举例来说，是电子对于原子核的结合能。

麻省理工公开课 - 化学原理课程节选

Xperia E is a compact and competitively priced smartphone that is engineered for simplicity.

ENGADGET: Sony reveals 3.5-inch Xperia E single or dual-SIM Android phone, coming early next year

Apo-E is thought to stop the damage being done to the cholesterol, but with varying degrees of effectiveness.

BBC: Gene linked to heart disease risk

The E is relatively high now, and if earnings decline, which is very possible, stock prices could fall.

FORBES: Bad News Usually Spells Good Buys