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I'd say:
It has a highly efficient system for drawing and storing energy, allowing it to recharge to launch an aircraft within 45 seconds.

The original post does not deal with conversion.

The issue of personnel is another major problem that is not easy for most ents to resolve.

maybe: stability against vibration

Я не переводчик авиационной тематики.

I do not see that отработка means "testing". It is probably "development".

aero servo elasticity is a technical term. - Google Search

Multitran shows:...

Finally, the heavy tank was rejected and the OBT line of medium tanks was built.

It's not that the building of heavy tanks was stopped, but it was never started.

vozduh - air
o connector vowel
pitaniya - feed
"air-feed" system kinda. air cooling/filtering system.

The GTD-1250 engine of the T-80U tank, is smaller and almost 100kg lighter. The better air filtration system of the GTD-1250 provides very clean[OR pure] air (98.5%). It supplies air to the engine...