The heat is on now that the election is only a week away.

离选举只有一个星期了，因此大家开始感觉到有压力了。

《牛津词典》

The heat is on. Take action.

这是有去无回的死路一条。

youdao

To perform well when the heat is on , all you have to do is let it happen.

要正在大的压力上表隐出色，你要做的是任之发生。

youdao

Because eventually they will tell us maybe things about how heat is changing further on.

我们需要知道焓在系统中怎样变化,因为最终它们或许会告诉我们。

麻省理工公开课 - 热力学与动力学课程节选

The heater is on, it's producing heat until a negative signal is registered, 'oh we've gone too high', and then it turns off.

加热器会开着,一直产生热量直到它得到一个关闭的信号,噢我们弄得太热了,然后就关闭了

耶鲁公开课 - 生物医学工程探索课程节选

Or I could have a non-adiabatic, I could take the same temperature change, by taking a flame, or a heat source and heating up my substance. So, clearly q is going to depend on the path.

也能改变温度，绝热指的是没有热传递，在非绝热条件下，也同样可以升温,比如用火或者热源加热，这样，q也应当与路径有关。

麻省理工公开课 - 热力学与动力学课程节选

Non-profit bosses tend to muck in with volunteers when the heat is on (you'll find them, for example, helping to stuff goody bags for fund-raising events).

ECONOMIST: Schumpeter

Now the heat is on for Berezovsky and Glushkov.

FORBES: Follow Through

But the real heat is on Mr Geronzi.

ECONOMIST: Parmalat