音标:[pɜ:mju:'teɪʃnz] ;
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( permutation的复数形式 )
n. an event in which one thing is substituted for another
n. the act of changing the arrangement of a given number of elements
n. complete change in character or condition

permutations的用法和样例:

例句

  1. Multiplication of permutations, unlike multiplication of numbers, is not always commutative.置换的乘法不同于数的乘法,它并不一定满足交换律。
  2. It turns out that all these problems can be solved at once, provided we learn enough about the cycle structure of permutations.结果是,所有这些问题都可以一次解决,只要我们充分地了解各置换的循环结构。

Lesson 6 A B C D 第6课 A B C D 1 Letters 1.字母 A apple A 苹果 B book B 书 C cat C 猫 D door D 门 2 Let's sing a song. 2.来唱一首歌。 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Now I know my ABCs. Next time, sing with me. (歌

发表于:2018-12-12 / 阅读(64) / 评论(0) 分类 VOA2001-国际风云(5)

[00:00.00]REVIEW MODULE UNIT 1 [00:11.21]3.Listen and draw V or X.

发表于:2018-12-12 / 阅读(104) / 评论(0) 分类 新标准小学英语活动用书9册(一年级起点)

You would be nervous if you were representing the human race against a very clever machine. Lee Se-dol, the world champion at Go is due to play a computer with a programme devised by Google. 你若是要代表人类和聪明的机器一决胜负,你也

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一伙戴着外星人面具劫匪抢劫了卢瑟集团运输车盗走了里面东西克拉克刚好路过试图制止却被其中一名劫匪一拳打翻克拉克惊奇地发现居然拥有和自己相似力量!通过X光视线克拉克发现这名劫匪脑骨中镶着一片金属片 克拉克跟踪艾力克到了一家铸炼厂发现提炼氪石里靠吸收氪来增

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学英语单词
abandoned infants
backlighting
bathymeters
beaubois
bedding-in
beer-mats
beet and water wheel
Blancophor R
boiler hydraulic pressure test
brianne
brushland tinamou
Brzeznio
Bulbophyllum linchianum
channel-bank slumping
class member
cockatoo
colour centre crystal
common driver
complete life table
composite forecast chart
contested election
coordinate digitizer
copying template
Corps of Military Police
Cynara scolymus
dan anchor
degree gay-lussac
deuterotoky
distressedness
diver's well
double-channel simplex
draw off mechanism
endogamies
Estivareilles
Euphorbia nematocypha
extended test
extrinsicness
femoral sarcoma
finger citron flower
first Brillouin zone
five ply paper bag
form grinding machine
Franksville
freeney
funds for the change of trade
genus Borago
hardfaced
hect-
holloing
hydrostatic curves
imidosulfonic acid
insert punch
intermittent gas lift cycle
inust
Iprazid
iwogumoa yushanensis
job-specific
ktrs
land compensation fees
laxable
lose on points
low-pass filters in controlloops
macro mineral
Mannheim School
marking end distortion
microsegments
mouthes
Murcia, Prov.de
murlug
nonnotice audit
nonraped
number of goods operations
ocote
overcast
pars
partnership dissolution
peridinium oceanicum
pupillogra
push production system
radioelectric meteorology
reduction pinion teeth
Seocheon-gun
seuen
socket and-spigot joint
soft launcher
sorting maching
steady propulsive condition
support points
supporting ridge
symbol number
synchronized etalon filter
syringic acid
thallous chromate
theciferous
turtle grass
two-transit method
uk-ireland
unemployed labor force
wave pressure meter
wolansky
word memory module
yellow oxeye