What is the unit of potential difference? Volt.

势能差的单位是什么，伏特。

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Metallic tin is not electropositive enough compared with the electronegativity of its oxide to deliver a useful potential difference.

比起铅来，金属锡的电正性没有二氧化锡的电负性强，所以无法产生可用的电位差。

youdao

In the case of lead and lead dioxide, this potential difference is just over two volts per cell.

以铅和二氧化铅为例的电池，每节电池的电位差可产生2伏电压。

youdao

What people did is they said let's define a unit of energy that represents a unit charge accelerated across a unit potential difference, and let's call that the electron volt.

前人们所做的就是他们说让我们确定,一个能量单位用来代表一单位电荷,加速穿过形成的一单位电势差，我们叫它电子伏特。

麻省理工公开课 - 固态化学导论课程节选

That potential difference is generated by the movement of ions, principally sodium and potassium across the membrane.

电势差是由离子运动造成的,特别是钠和钾的跨膜运动

耶鲁公开课 - 生物医学工程探索课程节选

I feel that I've fallen short of my potential " to really make a difference."

我觉得我能改变世界的能力,越来越弱了“

哈佛公开课 - 幸福课课程节选

The overall objective was to produce concrete outcomes in plenary sessions, workshops and cross-sectoral dialogue formats with the aim of arriving at decisions that have the potential to make a genuine difference in terms of sustainable impacts.

UNESCO: World Water Assessment Programme (WWAP)

And that, I think, illustrates the potential difference in terms of how we could run our campaigns.

NPR: Obama Stresses His 'Electability' Versus GOP

And I indicated to my Cabinet that as hard as they're working and as difficult as the political environment can be sometimes, we are extraordinarily blessed to be in a position where we can make a potential difference in the lives of millions of people.

WHITEHOUSE: President Obama Speaks to Press After Cabinet Meeting