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Close up of civil male engineer asian working on blueprint architectural project at construction site at desk in office.
engineer people meeting working and pointing at a drawings in office for discussing. Engineering tools and construction concept.
Pre oxygenation for general anesthesia. Focused surgeon team operating in an operating theatre, blue filter
A desk of engineers who are studying the area for laying foundation of energy saving homes and raw material costs.
Aerial. People crowd on pedestrian crosswalk. Top view background.

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