Permutation
[ ˌpə:mju(:)'teiʃən ]
其它 Other
n. （一组事物可能的一种）序列，排列，排列中的任一组数字或文字;
📝 例句
Other enumeration problems lead us to the study of orbits of permutation groups.
其它的计数问题引导我们去研究置换群的轨道。
To subject to permutation.
使改变排列顺序
permutation group
置换群
The permutation is even if the number of inversions it contains is even.
如果一个排列中含有的反序的个数是偶数，则称它为偶排列。
odd permutation
【数】奇排列, 奇置换
🌱 联想助记
【记】per-前缀“通过、全部”,mut-改变,ation-名缀:全部改变→彻底改变
✅ 同义词
📖 牛津释义
permutation
n
(fml 文)
1 (esp mathematics 尤用於数学)
(a) [U] variation in the order of a set of things 排列; 置换.
(b) [C] any one of these arrangements 一组排列
The permutations of x, y and z are xyz, xzy, yxz, yzx, zxy, zyx. x、 y、 z的排列是xyz、 xzy、 yxz、 yzx、 zxy、 zyx.
2 (infml 口语作 perm) (Brit) (esp in football pools) selection of items from a group, to be arranged in a number of combinations （尤指足球普尔赌博中的）选定组合.
🔁 扩展释义
*[,pә:mju'teiʃәn]n. 交换, 更动, 排列【计】 排列【化】 取代; 置换; 蜕变【经】 排列, 置换, 重新配置
🏥 医学释义
排列，交换，置换
📖 同为「GMAT」词汇
查看全部GMAT词汇 ›🗣️ 情景例句
Our troop was under his command.
我们的部队由他指挥。
I enjoy your company.
我喜欢有你做伴。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马，加以驯服。