backflow
plural of foodstuff
The manufacture of rings (type of jewellery).
The flow of a fluid (through a pipe etc.) in a direction opposite to that which is normal or intended.
Obsolete spelling of drate; simple past tense of drite
配管工は、主要給水に汚染水が入るのを防ぐために逆流防止器を設置した。
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DiQt
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