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| 流量調整図 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 流量調節器 (りゅうりょうちょうせっき) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 流量調整器 (りゅうりょうちょうせいき) | |||
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flow controller : 2 phrases in 1 subject |
| Technology | 2 |