At high temperature(s) and pressure(s)?

[Tamara]

Hi

… stress tests are carried out in physically extreme operating conditions such as high temperatures, pressures, humidity[ ], and… bla-bla-bla.

In Russian we use high temperatures, as well as 'at high pressures', but I’ve never seen it in English... and am being in doubt.
Is it OK or it is just a non-native use?

(By the way, (at least) MS Word does not mind (has nothing against ) those countable temperatures and pressures. )
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It’s impossible to learn swimming without entering the water…

[Mister Micawber]

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You can do this either way in English, Tamara-- either the uncountable or plural countable versions.
.
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Native English teacher at Mister Micawber's

[Tamara]

Thanks!

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It’s impossible to learn swimming without entering the water…

[Yankee]

[Tamara]

Hi Amy

'I'm in (an) agony of doubt!'

Thank you very much!
('Thank you a lot!' – is it an American way to say that?)

[Fan Of Arabian Horses]

[Yankee]

.
Isn't it amazing how similar English and German sometimes are, Michael?

The only trouble is that it's tough to predict just where the similarities are going to turn up.

[Alan]

Hi,

Another one:

I'm beginning to have my doubts about Tony Blair, said George.

Alan
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English as a Second Language
You can read my ESL story 'the' vs. 'a/an'

[Fan Of Arabian Horses]