字典網>> 英漢字典>> C開頭詞條>>closed under union的意思 漢英字典closed under union中文翻譯：【計】 對"或"運算封閉字典網 相關詞條：closed nonteractive formula closed loop voltage gain closed-loop bandwidth closed-loop estimation closed-circuit communication sy-stem closed region closed end cap closed fist bandage closed-circuit oil system closed-edge gutter stabilizer