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An indoor over-the-shoulder close-up photograph capturing an engineer or student participating in a computer-aided tech workshop. The composition centers on a black laptop computer resting on a desk, displaying a bright green chroma key mockup application window box over its user desktop interface. A clear plastic water bottle with a green cap sits immediately beside the machine. In the foreground, the back of a participant's head and hair are framed in soft-focus, while a secondary laptop workstation stands in the blurred background. The setting represents a modern software application seminar, computational civil engineering education session, or professional digital building design training lab in Bangkok, Thailand.