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| 1 | high rate aeration tank with settling compartment | 高速エアレーション沈殿池 | |||
| 2 | high rate biological oxidation-settling unit | 高速エアレーション沈殿池 | |||
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|---|---|---|---|---|---|
| 1 | high rate aeration tank with settling compartment | 高速エアレーション沈殿池 | |||
| 2 | high rate biological oxidation-settling unit | 高速エアレーション沈殿池 | |||
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