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|---|---|---|---|---|---|
| 1 | structural standard | 構造基準 | |||
| 2 | Structural Standards of Wastewater Purifiers | 浄化槽の構造基準 | |||
| 3 | technical guideline for landfill structure | 最終処分場の構造基準 | |||
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|
|---|---|---|---|---|---|
| 1 | structural standard | 構造基準 | |||
| 2 | Structural Standards of Wastewater Purifiers | 浄化槽の構造基準 | |||
| 3 | technical guideline for landfill structure | 最終処分場の構造基準 | |||