Questions & Answers about Скорость отжима указана здесь.
Отжима is the genitive singular form of отжим.
In everyday Russian, отжим often means the spin cycle or spinning in a washing machine. So:
- скорость = speed
- отжима = of spinning / of the spin cycle
So скорость отжима means spin speed or more literally the speed of the spin cycle.
Russian very often uses the pattern:
noun + noun in the genitive
to show a relationship like speed of X, color of X, price of X, etc.
So:
- скорость ветра = wind speed
- скорость интернета = internet speed
- скорость отжима = spin speed
This is one of the most common ways Russian builds noun phrases, and it often sounds more natural than using an adjective.