Duration wallpapers
physics calculation of the duration of the year rotation1920 x 1200, 71 kB
art navy submarine underwater boat class gato modified diesel engines battery increase the duration patrol fighting quality united states ww2.1920 x 1080, 228 kB
Swarthy bearded guy changes the wheel1920 x 1080, 290 kB
Astronomical calculations, formulas on a black background1920 x 1200, 71 kB
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