音标:[,ʌltrә'sentrifju:dʒ] ;
n. 超离心机
[化] 超速离心机
n. a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins
v. subject to the action of an ultracentrifuge
词型变化:过去分词 : ultracentrifuged ; 现在分词 : ultracentrifuging ; 过去式 : ultracentrifuged ; 第三人称单数 : ultracentrifuges ; 名词复数形式 : ultracentrifuges

发表于:2018-12-01 / 阅读(83) / 评论(0) 分类 闭着眼睛飘单词 六级词汇

歌曲 : Amazing 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play W

发表于:2018-12-14 / 阅读(90) / 评论(0) 分类 舞曲狂欢

Todd: Well actually speaking of extreme sports, we're talking about extreme sports, have you heard about ultra marathon? Julia: I'm reading a book right now that's about a tribe of ultra runners in Mexico and I thing it's gonna come on to the subject

发表于:2018-12-25 / 阅读(56) / 评论(0) 分类 原版英语对话1000个

人类对于火星的探险总是充满了好奇..... Callum: Hello and welcome to 6 Minute English, I'm Callum Robertson and with me today is Kate, hello Kate. Kate: Hello Callum. Callum: Do you like going on business trips? Kate: Well I do quite li

发表于:2018-12-27 / 阅读(59) / 评论(0) 分类 一起听英语

Smartphone App Helps Snakebite Victims Scientists in Denmark have developed a venom test kit to help doctors treat victims of snake bites. The kit was created to be simple and has only two pieces of equipment: a centrifuge and a smartphone. 丹麦科学

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 2018年VOA慢速英语(二)月

One of the world's most amazing migration is about to begin in earnest: 300 million monarch butterflies spread across North America are about to converge on small forests in the mounts of Mexico. This year, the butterflies have an unusual company as

发表于:2019-01-08 / 阅读(150) / 评论(0) 分类 2005年NPR美国国家公共电台

歌曲 : Nights And Days 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project

发表于:2019-01-11 / 阅读(72) / 评论(0) 分类 舞曲狂欢

歌曲 : Love 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play Win

发表于:2019-01-11 / 阅读(70) / 评论(0) 分类 舞曲狂欢

歌曲 : Hot 艺人 :Inna 音乐星级 : ★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play Win,Ak

发表于:2019-01-11 / 阅读(97) / 评论(0) 分类 舞曲狂欢

1. Stocks close sharply lower as investors worry that the economy is poised to weaken even as frozen credit markets slowly start to show signs of recovery. The Dow Jones Industrials ended down 515 points after being down nearly 700 points in the fin

发表于:2019-01-11 / 阅读(114) / 评论(0) 分类 美联社新闻一分钟2008年(十)月

Internet-Connected Refrigerators and Stoves? 与互联网连接的冰箱和炉灶 The Consumer Electronics Show is held yearly in the western American city of Las Vegas, Nevada. It is one of the largest technology shows in the world. Technology compa

发表于:2019-01-12 / 阅读(54) / 评论(0) 分类 2015年VOA慢速英语(一)月

By Robert Berger Jerusalem 14 November 2009 An ultra-orthodox Jewish man is seen next to Intel's Jerusalem office building, 14 Nov 2009 Alleged violations of the Jewish Sabbath by a top international company prompted religious protests in Jerusalem

发表于:2019-01-14 / 阅读(113) / 评论(0) 分类 VOA标准英语2009年(十一月)

China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co

发表于:2019-01-19 / 阅读(140) / 评论(0) 分类 2017CRI中国国际广播电台

Two Prepare for ' Spirit of Pakistan ' Journey Jon Tkach Islamabad 21 Jun 2001 09:20 UTC Two Pakistani 1)pilots are preparing what they hope will be a 37,000 kilometer journey around the world in an 2

发表于:2019-01-31 / 阅读(70) / 评论(0) 分类 VOA2001-国际风云(1)

An Israeli ultra-Orthodox Jewish news website has cut Kim Kardashian one of the world's most photographed women from a photo taken of her in Jerusalem this week. 以色列极端正统派犹太新闻网站已将金卡戴珊一个世界上出镜率最高

发表于:2019-02-04 / 阅读(58) / 评论(0) 分类 阅读空间

英语里你不知道的几个小秘密 The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO。 The oldest word in the English language is t

发表于:2019-02-04 / 阅读(115) / 评论(0) 分类 实用英语

By Barry Wood Belgrade 03 February 2008 Serbian pro-Western President Boris Tadic has claimed victory over his ultra-nationalist challenger Tomislav Nikolic in a closely contested runoff vote. VOA's Barry Wood in Belgrade reports that amid mild and s

发表于:2019-02-06 / 阅读(121) / 评论(0) 分类 VOA常速英语2008年(二月)

This year, TV makers are doing their best to give huge-screen fanatics more breathing room. New ultrahigh-definition sets were shown off Monday by LG Electronics, Sharp, Sony and Samsung Electronics at the international CES gadget show in Las Vegas.

发表于:2019-02-14 / 阅读(212) / 评论(0) 分类 英闻天下

Despite temperatures of around 30-degrees on Sunday, hundreds turned out in southwest Beijing to take part in what's known as an ultra-marathon. More than twice the distance of a marathon, which is just over 42-kilometers, ultra-marathons are conside

发表于:2019-02-18 / 阅读(117) / 评论(0) 分类 英语新闻

1. The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO. 2. The oldest word in the English language is town. 英语里最有年头的一个词

发表于:2019-02-25 / 阅读(137) / 评论(0) 分类 英文语法词汇
学英语单词
acid-digestion-fast
adverb preposing
algebraic compiler and translator i (act/i)
all or nothing check
amalgamation barrel
antenna insulator
anticatalase
arbitrary phase
barbatane
BARCIS
belover
body types
canvas shoes
center of glaciation
clay-strip forming technique
Cryptocarya chinensis
culture-based
cyathea podophylla
day-sun
delist
derquantel
detailed procedure
digital gaussmeter
divesting
drop scone
dukes of cumberland
Ehrlich's triacid stain
embarrassin'
encountering
endolympha
enucleation scissors
exercise censorship
factorial trials
fluorine pollution
folded potential
fre
gentleman's agreements
gley podzolic soils
got him
header-label
high pressure oscilloscope
high voltage testing transformer
high-pass filters
HMWD
hunger marchers
in the presidency of
jackknife mast
Jacobean
joint suretyship
lewa
library ethics
long-term interest-free loan
marine zoomorphology
maxillipeds
mccoun
mean chord length
measuring pressure basis
method-acting
mining room and pillar
multicivilizational
Mādevān
national maritime board
natural medicine
palaeoencephalon
phosphinotricin
phurbus
picked
piston ring belt
placental incarceration
plagioclase lherzolite
porphyry copper deposit
preflagellate
relugging
rengas
roman hyacinths
sail locker
schrags
scnts
sealanes
sheet-leveling machine
shikaki
siemens
sorbopyranose
sun blister
superdisk
supersonic wire drawing
Ternowskite
the dear knows
the tide
thumb slide rules
tibio-adductor reflex
trailed plow
transverse palmar arch
tutton
uninvite
unnippled
urogenital tuberculosis
Van Allen belts
wapello
weak formation
wear characteristic
YY1