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Solitary swallow perched on wire against clear blue sky.
The interior of a modern industrial plant, showing a complex system of stainless steel pipes, cable trays with blue wires, and large processing vessels and gauges
Electrician work to connect electric wires in electrical box.
Outdoor overhead electrical power line wire is isolated.
Microscopic view of diagonal gold wire bonds in IC packaging, showing parallel wire array connecting chip to substrate with blue and gold bonding pads in semiconductor assembly.

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