An engine, for example, can be powered by direct current – which means that the electrons flow in one direction only.

例如，一台发动机，可以由直流电提供动力，这意味着电子仅在一个方向上流动。

I'm not talking rock music here, I'm talking electrical currents – alternating current - AC, and direct current - DC, the two ways in which electricity flows.

我在这里说的不是摇滚音乐，我说的是电流——交流电AC和直流电DC，它们是电流流动的两种方式。

The inverters then convert it from dc direct current to ac alternating current.

流器将其从直流电转换为交流电。

It's just, it's just a direct current, is exactly what it is.

这就是直流电，正是它的本来面目。

When an EV is plugged into a standard charging point, its systems convert AC into direct current (DC), which is what a battery needs to store electricity.

当电动车插入标准充电点时，其系统将交流电转换为电池存储电力所需要的直流电(DC)。

Feeling the pressure from Morgan, Edison sets out on a mission to prove his direct current is the safest form of electricity.

感觉到来的压力 爱迪生启动了一项计划 他要证明直流电是最安全的。

Well, most of them convert the direct current electricity from the batteries into an alternating current.

它们大多数都是把电池里的直流电转换成交流电。

It uses direct current to add up to 80% of the car's battery charge in less than half an hour.

它利用直流电在不到半小时的时间内为车充电80%。

I'm not talking rock music here, I'm talking electrical currents-alternating current-AC, and direct current-DC, the two ways in which electricity flows.

我不是在说摇滚音乐，我说的是电流——交流电——AC，还有直流电——DC，电流动的两种方式。

The idea was that from this central station would flow all this direct current, but it also meant that it had to be transmitted.

通过中央发电站 直流电将会流出 但这些电还需要输送。

That direct current and, and the word direct means just that, and that's exactly what it is.

直流电这个词本身就解释了它的意思。

While you may have direct current on big power lines, everything else is alternating current.

虽大型输电线路可能使用直流电，但其他所有设备都使用交流电。

Edison was promoting direct current and Tesla was promoting alternating current.

爱迪生力挺直流电，而特斯拉则倡导交流电。

More robust cables and transformers at sea to convert wind power from alternating into direct current, which can travel over long distances without big losses, enable more electricity to be generated farther away.

更坚固的海底电缆和压器可以将风能从交流电转换为直流电，这样就可以在长距离传输中减少损耗，从而能够在更远的地方产生更多的电力。

Direct current, of the kind which came to dominate electricity delivery systems in the late nineteenth century, consistently sends electricity in one direction along an electric grid.

直流电，就像在19世纪末主宰电力输送系统的一种，始终沿着电网单向传输电力。

This accounts  for the radiant energy of the aurora, which would be impossible if energy was transferred  through the magnetic field via direct currents.

这解释了极光的辐射能，如果能量通过直流电通过磁场传输， 这是不可能的。

And all of this money depended on his patented direct current system being standardised, being adopted as the standard current for electricity supply.

而所有这些资金都依赖于他的专利直流电系统成为标准，并被采纳为电力供应的标准电流。

So it's directing the current from the lightning bolt right into the ground rather than into the tree itself.

因此，它将闪电的电流直接引向地面，而不是引入树木本身。

There a reason you're on direct current?

你们怎么还用直流电？

However, after this, Edison began to become stubborn, insisting on using his own direct current system and refusing to accept Tesla's advice to switch to a more advanced, more stable, and more promising alternating current system.

而，在此之，爱迪生开始得固执，坚持使用己的直流电系统， 拒绝接受特斯拉的建议，改用更先进、更稳定、更有前途的交流电系统。