廃水
はいすい
noun (common) (futsuumeishi)
wastewater
waste water
liquid waste
black water
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排水
はいすい
noun (common) (futsuumeishi)
noun or participle which takes the aux. verb suru
drainage
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配水
はいすい
noun (common) (futsuumeishi)
noun or participle which takes the aux. verb suru
water supply
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