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

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发表于:2018-12-12 / 阅读(570) / 评论(0) 分类 新标准小学英语活动用书9册(一年级起点)

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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
after-life
air sac mite
amplitude spectroscopy
anchor-leg
annihilator
ball header
blingless
boundedness control
cardiac embarrassment
carrizo (venezuela)
Caryophyllaceae
Charlton white
cheese eater
colour sensation
Corynebacterium renale
Cotton balance
cottonmouth moccasins
deaf in an ear
differential thermal expansion
dootsie
dry mechanical dust collector
Dysaesthetic
ecstatic states
ectethmoid bone
edible fungus
end yoke
EU-1086
fahl
fiber cable assembly
flat-topped weir
flechette cartridge
flowerhead
foliation fissure
golf widow
graphoanalysis
Harrai
hypercapitalist
iiest
kasabach-merritt syndrome(hemangioma-thrombo-cytopenia syndrome)
Kaub
keith
kiwano
kiyang (giyang)
Kuvi
laclottes
laser homing control
made provision against
manlikest
mastics
maturity index
microfilmers
motion analysis camera
multiomic
multiple values
neon
non-isothermal condition
open one's trap
operationalities
operatum
OQC
outofsync
overruffs
Overton window
permanent repair
permutoid swelling
potassium propionate
potency class
prescots
proavis
purple ammania
rack-staff
radiocarbon concentration
rehabilitation expense
rehypothecation
reversing mill
San Vito lo Capo
sciatic stretch test
senia
shifting ring
skin-dived
soothing effect
soyuzoid
spinning riffler
starolite (asteriated quartz)
time of emergence
toximucin
trailing movement
Uncle Dick
underwriting brokers
V-ONC
Vat Olive R
ventilated rib
virtual meeting room
vivianoes
walk sb.into jail
weight mixing
whittier
wirewound potential meter
woody part
word-oriented
xenovitalism
zectran