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2. 2) 環境省,経済産業省 : "温室効果ガス排出量算定.報告マニュアル ver 2.3", (2008.5).
3. 3) ガストロン,25, 22 (2007), ((株)ガスレビュー).
4. 4) N. Matsumoto, T. Watanabe, M. Maruyama, Y. Horimoto, T. Maeda, K. Kato : Metrologia, 41, 178 (2004).
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