常見例句雙語例句When the constraint expression of a query is not a CNF (Conjunctive Normal Form), it is generally transformed into an equivalent DNF (disjunctive normal form)an union of CNFs .當數據立方查詢條件不是合取范式時，一般是將它轉化成為若干合取范式的并的形式（析取范式）。 返回 conjunctive query