universal class的用法和樣例：
例句
- A class of combinatorial optimization problems has the characteristic that problem space can be mapped into a set of permutations.
摘要針對問題空間為全排列集合的一類組合優化問題，提出了一種混合進化演算法。
universal class的相關資料：
臨近單詞
universal bar
universal
Universal Suez Canal Company
Universal Convention of Post
Universal Military Simulator
universal joint sliding yoke
universal joint splined shaft
universal electron microscope
universal side cutting pliers
universal research microscope
universal-enumeration judge
universal turbulence constant
