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| 1 | environmentally sound technology | EST | 環境上適正な技術 | ||
| 2 | environmentally sound techniques and methods of operation | 環境上適正な技術及び運営方法 | |||
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| 1 | environmentally sound technology | EST | 環境上適正な技術 | ||
| 2 | environmentally sound techniques and methods of operation | 環境上適正な技術及び運営方法 | |||
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