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U.S. Department of Energy: IMG_1559
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U.S. Department of Energy: IMG_0246
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U.S. Department of Energy: IMG_0241
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U.S. Department of Energy: IMG_0238
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U.S. Department of Energy: IMG_0225
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U.S. Department of Energy: IMG_0208
©
U.S. Department of Energy: IMG_0203
©
U.S. Department of Energy: IMG_0193
©
U.S. Department of Energy: IMG_0189
©
U.S. Department of Energy: IMG_0186