Air gear wallpaper on telephone / page 13

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4 elements - air, fire, water, earth

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Colored cubes in transparent air

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Butterfly under ice and air bubbles

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Colored bubbles in the air and water

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Military aircraft in the air above the sky

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A military plane is captured in the air next to a rocket

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The Tu-95ms aircraft is on display at the Central Air Force Museum

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Two birds are fighting in the air

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Machine mechanism. Movement of gears

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Mechanism of gears of different sizes

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Two-seat Su 30 Egyptian Air Force fighter

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Car engine with metal gears