開栓
かいせん
kaisen
JMdict entry #2182660
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noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru
unstopping; uncorking; uncapping; opening
antonym: 閉栓・1
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noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru
connecting (e.g. gas supply)
antonym: 閉栓・2