[计] 可逆性

invertibility的用法和样例:

例句

用作名词(n.)
  1. This paper is a study on the invertibility of the commutator of scalar-idempotent elements and scalar-involutory elements of a unitary ring.摘要本文研究在一个有单位元的环中两个倍幂等元的换位子与两个倍对合元的换位子的可逆性问题。

心灵歌汤 Tranquility

发表于:2018-12-06 / 阅读(188) / 评论(0) 分类 心灵歌汤

1. Can you play the piano? Yes, but not very well. 2. How about the guitar? (I can play) a little. 3. Can Billy ride a bike? No, he can't. He's too young. 4. Does Abby speak Mandarin? Yes, she speaks very well. 5. Do you sing? Not really. I have no t

发表于:2018-12-17 / 阅读(173) / 评论(0) 分类 英语词组对话

ENVIRONMENT REPORT - October 4, 2002: Sport Utility Vehicles By Mario Ritter This is the VOA Special English ENVIRONMENT REPORT. One of the most popular kinds of car in the United States is not really

发表于:2019-01-02 / 阅读(146) / 评论(0) 分类 健康与环境

Tynisha Keli,原名Tynisha Keli Soares。1985年出生于美国,是一名RB歌手。2009年首张专辑The Chronicles of Tk在日本专辑排行榜拿下第15名,单曲 Shatter'd则在公告牌Japan Hot 100 Charts获得第六名的好成绩。T

发表于:2019-01-10 / 阅读(171) / 评论(0) 分类 天籁音乐

Tynisha Keli,原名Tynisha Keli Soares。1985年出生于美国,是一名RB歌手。2009年首张专辑The Chronicles of Tk在日本专辑排行榜拿下第15名,单曲 Shatter'd则在公告牌Japan Hot 100 Charts获得第六名的好成绩。T

发表于:2019-01-10 / 阅读(159) / 评论(0) 分类 天籁音乐

THE MAKING OF A NATION - April 4, 2002: 1930s/Neutrality Tested By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) Growing tensions in Eur

发表于:2019-01-11 / 阅读(146) / 评论(0) 分类 The Making of a Nation

Technology Report - Flying Car Moves Closer to Reality 科技报道 - 飞行汽车即将成为现实 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 You could fill the sky with all the ideas people

发表于:2019-01-12 / 阅读(156) / 评论(0) 分类 2011年VOA慢速英语(七)月

Reality of Mormon Life More Complex Than Romney Image Iconic temples, a world-famous choir, and clean-cut missionaries sent worldwide by the Church of Jesus Christ of Latter-day Saints in Salt Lake City. But a visit to suburban Salt Lake City shows h

发表于:2019-01-13 / 阅读(161) / 评论(0) 分类 VOA标准英语2012年(九月)

Swaziland has one of the highest HIV prevalence rates in the world - 26 percent for those between the ages of 15 and 29. But to deal with the epidemic, health officials must do more than increase treatment, care and prevention efforts. They must also

发表于:2019-01-14 / 阅读(148) / 评论(0) 分类 VOA标准英语2010年(十)月

Lower Oil Price Helps Consumers But Market Volatility Remains In recent months, crude oil prices have experienced their sharpest drop since the 2008 financial crisis, and now stand at around $80 a barrel. Alongside one of the main highways leading in

发表于:2019-01-14 / 阅读(147) / 评论(0) 分类 VOA标准英语2011年(八月)

Lick Lickety split 今天我们要给大家介绍的两个习惯用语都是以 lick 这个字为主的。Lick 就是用舌头舔什么东西。比如说,你要是买了一个蛋卷冰淇淋,那你就非

发表于:2019-02-02 / 阅读(202) / 评论(0) 分类 美国习惯用语

Where's Mom? 妈妈呢? She went to a school-board meeting. 她去参加联合校董事会会议了。 I don't know how she does it. 我不知道她怎么办到的。 She sure keeps busy. 她真的是忙个不停。 It's important to her. 这对她来说

发表于:2019-02-06 / 阅读(139) / 评论(0) 分类 英语杂谈

Hello there, Robbie. 哈,Robbie。 What are you doing up this late? 这么晚了你还没睡在做什么? Reading. 读书。 Reading? 读书? At this hour? 在这个时候? Ah, come on, Robbie. 噢,算了吧,Robbie。 What are you doing u

发表于:2019-02-06 / 阅读(134) / 评论(0) 分类 英语杂谈

Good morning. 早安。 What a wonderful morning! 多么美好的早晨! Don't the flowers smell wonderful? 花儿闻起来好香,不是吗? Good morning, Ellen. 早安,Ellen。 Yes, they do. 是的,花儿好香。 That's why I'm reading my

发表于:2019-02-06 / 阅读(120) / 评论(0) 分类 英语杂谈

音乐咖啡厅:Tynisha Keli - Lullabye 相关介绍:Tynisha Keli,原名Tynisha Keli Soares。1985年出生于美国,是一名RB歌手。2009年首张专辑The Chronicles of Tk在日本专辑排行榜拿下第15名,单曲 Shatter'd则在公告牌

发表于:2019-02-07 / 阅读(251) / 评论(0) 分类 音乐咖啡厅

This is your Lul-Lul-Lul-Lul-Lul-Lul-Lul-Lulla-bye You're my baby And I sing this just to show your mine I'm a hold you til you Sleepin in the middle of the night This is your Lul-Lul-Lul-Lul-Lul-Lul-Lul-la-bye Closer than you think you are Always th

发表于:2019-02-11 / 阅读(283) / 评论(0) 分类 音乐天堂

今天我们要学的词是quality time。 Quality time, 意思是高品质的时光。 The newly weds tried to spend quality time together despite busy work schedules, 尽管工作很忙,但是这对新婚燕尔的夫妇还是想方设法在一起渡

发表于:2019-02-11 / 阅读(136) / 评论(0) 分类 英语单词荟萃

音乐咖啡厅:Tynisha Keli - It's Over 相关介绍:Tynisha Keli,原名Tynisha Keli Soares。1985年出生于美国,是一名RB歌手。2009年首张专辑The Chronicles of Tk在日本专辑排行榜拿下第15名,单曲 Shatter'd则在公告

发表于:2019-02-18 / 阅读(204) / 评论(0) 分类 音乐咖啡厅

The director of the U.S. Secret Service says his agency was responsible for allowing an unauthorized couple to attend a White House state dinner last week. Chris Simkins | Washington 04 December 2009 MIchaele and Tareg Salahi, greet President Barack

发表于:2019-02-19 / 阅读(171) / 评论(0) 分类 VOA标准英语2009年(十二月)

Brenda: Its fun shopping for a new cell phone, dont you think? Yoji: Sure, but I just need one with the bare basics . Brenda: Not me. I want one thats top-of-the-line . My old phone was cheap and flimsy , and it started acting up after only a few mon

发表于:2019-02-19 / 阅读(125) / 评论(0) 分类 地道美语播客
学英语单词
a babygirl
Abejones
abrooking
adultized
al huwwah
anarres
asset-based
avturs
bell
bettily
brooksie
C. O. D.
caking coal
certificate registry
channel address word
concrete tie
condition of execution of plan
cost behavior analysis
councilperson
crossed adductor knee-jerk
cutting list
data-processing
deferred shares of stock
Deporone
depresh
disclination
dog shit
door lintel
elevator chain
emerald-greens
endoscopy
equilibrium diameter
eudyptess
evil days
fading time
fatty n-alcohol
fee-farm
floor of the court
garron
give sb a bloody nose
hard facing
head drum pedestal
heart failure or chronic congestion
high powered engine
horizontal cacao press
hyper environment
IHHS
invariant dimension property
Jno
Kasaï-Occidental, Prov.du
kmetia fici
laterest
linear polarizing filter
livestock pharmacology
loss function
lym
make broad my phylacteries
manslaughterers
maximum condition
Mempawah
millering
mood board
Murder will out
neurologists
nonverified
northernize
open-sided milling machine
packie
positive ion-ring
postglenoid foramina
potter's clays
pratices
prison breach
project group
Prometheus-type
psychotridine
pull sth back
punchboards
qualitive
relaxed skin tension lines
road dawgs
sauce garden
simultaneous prosperity
soak ... up
sodium peroxychromate
steep-sided pulse
subprior
Sūq al Khāmis
TAQW
Tarsiidae
tenuitegillate
Thalictrum acutifolium
toxonosis
transferee corporation
transmission of crystalline materials
tree pipit
valve sheet
veneniferin
voltage regulator hybrids
vorlaufer
withe