● portfotolio ● BILL GATES VISITS DOE by U.S. Department of Energy

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U.S. Department of Energy: Ken Shipp/DOE Photo

©

U.S. Department of Energy: Ken Shipp/DOE Photo

©

U.S. Department of Energy: Ken Shipp/DOE Photo

©

U.S. Department of Energy: Ken Shipp/DOE Photo

©

U.S. Department of Energy: Ken Shipp/DOE Photo

©

U.S. Department of Energy: Ken Shipp/DOE Photo