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U.S. Department of Energy: HD.12B.008
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U.S. Department of Energy: HD.12B.007
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U.S. Department of Energy: HD.12B.006
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U.S. Department of Energy: HD.12B.005
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U.S. Department of Energy: HD.12B.004
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U.S. Department of Energy: HD.12B.003
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U.S. Department of Energy: HD.12B.002
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U.S. Department of Energy: HD.12B.001