English to Persian (Farsi) Tech/Engineering Mechanics / Mech Engineering

Hello,
How would you translate 'both displaying very little variations in performance' in the following text?

Most importantly, the new methodology enables reproducibility and scalability -- researchers managed to print 4500 nearly identical devices on a silicon wafer and plastic substrate. In particular, they printed gas sensors and photodetectors, both displaying very little variations in performance. Previously, printing a few hundred such devices was considered a success, even if they showed uneven behaviour.