双そう対つい演えん算ざんMeaningsNoun1. dual operationKanji used双pair対opposite演performance算calculateComposed of双そうpairNoun対ついpair; couple; set; antithesis; counter for items that come in pairs; counter for sets (of clothes, small furniture, utensils, etc.)Noun演えん算ざんoperation; calculationNoun