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Abstract electric technology circuit lines. futuristic connection digital data background. EP.14.hi-tech communication concept innovation vector illustration background
Incandescent Edison Tungsten filament lamp flickering and off, vintage retro bulb. Energy, electricity, innovation. Creative idea, realization, discovery, eureka. Copy space. High quality
Luminous flux. Light and shadow. Light and shadow experiment. Light source and curtain. Full and partial shade. Light intensity. Physics, science, chemistry, mathematics.
A new gasoline generator at the machinery exhibition

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