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sparge pipe
ecol. 喷水管指厕所
hydroel.st. 喷水管
tech. 穿孔扩散器; 厕所喷水管; 喷洒器; 小便槽冲洗管; 喷液管; 配水管; 多孔冲洗管
sparge pipe: 2 phrases in 2 subjects
Metallurgy1
Technology1