80.the frequency changing relay is out of order. It can not change frequencies.

率转换继电器故障，不能转换率。

74.the touch points are not firmly connected due to long time usage of relay.

由于长期使用继电器触点上接触不良。

For both, transformers and protective relays are going to be in danger.

对于这两种情况，变压器和保护继电器都将处于危险之中。

The control wire connects to a coil of wire inside the relay.

控制线连着继电器里的线圈。

Almost immediately, transistors could be made smaller than the smallest possible relays or vacuum tubes.

晶体管几乎可以制造得比世上最的继电器和真空管还要。

Relays are doing the same thing, just with electrons instead of water.

继电器和水龙头是一样的，只是在继电器中电代替了水。

The brains of these huge electro-mechanical beasts were relays: electrically-controlled mechanical switches.

这些巨大的机电怪兽的核心是继电器用电控的机械开关。

In a relay, there is a control wire that determines whether a circuit is opened or closed.

在继电器中，有根决定电路是否闭合的控制线。

It's pretty much the same thing as a relay - but importantly, vacuum tubes have no moving parts.

这和继电器基本就是一回——注意，真空管内没有活动部件。

You can think of a relay like a water faucet.

你可以把继电器看成是水龙头控制线。

What do you like about relays?

你喜欢继电器的什么？

Fortunately, she has a few extra relays for repairs.

幸运的是，她还有几个备用继电器需要维修。

Grace has to catch them before they wear out any relays in the machine.

Grace 必须在它们耗尽机器中的任何继电器之前抓住它们。

And as the number of relays increases, the probability of a failure increases too.

并且随着继电器越来越多，出故障的概率也越来越大。

I need you to get to that engine control panel and tell me which relays are in overload position.

我需要你找到引擎控制板并且告诉我哪个继电器过载了。

A good relay in the 1940's might be able to flick back and forth fifty times in a second.

20 世纪 40 年代，好的继电器可以一秒内开关五十次。

A good relay in the 1940’s might be able to flick back and forth fifty times in a second.

一个好的继电器在 1940 年代可能可以在一秒钟内来回轻弹五十次。

Well, relays is currently 1, so yes.

嗯，继电器目前是 1，所以是的。

The Harvard Mark I had roughly 3500 relays.

哈佛马克 1 号 (Harvard Mark I) 有大约 3500 个继电器。

Ok, so we've gone from relays to vacuum tubes to transistors.

我们从继电器到真空管，再到晶体管。