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U.S. Department of Energy: 271 034 001
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U.S. Department of Energy: 271 005 008
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U.S. Department of Energy: 271 014 007
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U.S. Department of Energy: 271 033 001
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U.S. Department of Energy: 271 035 001
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U.S. Department of Energy: 271 036 001
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U.S. Department of Energy: 271 037 001
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U.S. Department of Energy: 271 038 001
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U.S. Department of Energy: 271 039 001
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U.S. Department of Energy: 271 040 001