准稳电流

Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod

发表于:2018-12-07 / 阅读(153) / 评论(0) 分类 (科普英语)Earth and Sky

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(161) / 评论(0) 分类 数学英语

Pursue, attempt 追求,尝试 This week we follow the training of the British triathlete team, including Alistair Brownlee. Alistair is the current World Triathlon Champion. The 24-year-old also won the title in 2009 and is one of Britain's best ho

发表于:2018-12-09 / 阅读(184) / 评论(0) 分类 伦敦谈体育

Weakness, obstacle 弱点,障碍 This week we meet Russian athlete, Ivan Ukhov. Ivan is a high jumper and is hoping to compete at this year's Olympic Games. He is the current European Indoor champion and also won the world indoor championship title

发表于:2018-12-09 / 阅读(161) / 评论(0) 分类 伦敦谈体育

Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa

发表于:2018-12-24 / 阅读(121) / 评论(0) 分类 2014年Scientific American(八)月

Ordering more stationary A: Okay, then, Mary. We need 10 more loose-leaf binders, five pounds of heavy duty white paper, and what else did I say? B: Two boxes of transparencies for the over-head machines. A: Right. And Id like one of those new electr

发表于:2018-12-25 / 阅读(158) / 评论(0) 分类 办公室英语口语

第66期:In a Stationary Store Y:I'd like to see that pen,please. Y:我想看一看那支笔。 X:You mean fihis one? X:您说这支吗? Y:No,the other one in the brown case. Y:不是,是棕色盒子的那一支。 X:Oh,this one.Here. X:哦,这

发表于:2018-12-26 / 阅读(167) / 评论(0) 分类 出国旅游口语一本通

Lesson Fourteen Short Conversations Read aloud the concersation two times, and then listen to the tape without looking at the text. The Pursuit for Punchy Flyers Lucy: Come on, come all to the grand opening of The Electric Palace. You'll find high vo

发表于:2018-12-26 / 阅读(81) / 评论(0) 分类 王强口语 第一册

I love the news and current events. Im addicted to whats happening in the world. It doesnt matter what kind of news it is, I love watching it. Even if its from countries Ive never heard of. Ill even watch the same news programme three or four times a

发表于:2018-12-26 / 阅读(154) / 评论(0) 分类 纯正英语一分钟

1387 、 电木 Bakelite 1388 、 电玉;醛树脂 ureaformaldehyde(UF) 1389 、 电池 cell 1390 、 电池组 battery 1391 、 电位;电势 electricpotential 1392 、 电位计 potentiometer 13

发表于:2019-01-03 / 阅读(128) / 评论(0) 分类 英文名句短语

This is Scientific American's 60-Second Science .I'm Cynthia Graber. This'll just take a minute. It's Valentine's Day, even for barnacles which are stuck to rocks. But evolution has endowed these stationary creatures with some curious abilities accor

发表于:2019-01-08 / 阅读(172) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(231) / 评论(0) 分类 Scientific American(十)月

A: Does this hotel have a pool? B: I'm sorry, sir, we don't have one. However, in our gym, we do have swim stations. A: I'm not sure I understand. B: Think of a deep bathtub that you can swim in, but against a current. A: Cool. What will they think o

发表于:2019-01-15 / 阅读(133) / 评论(0) 分类 英语情景对话-旅馆

A: I was wondering if the buyers have accepted my counteroffer. B: Yes, I just faxed you the information an hour ago. The buyers have a counteroffer for you. A: How much did they counteroffer? B: They now are offering to pay ten thousand less than yo

发表于:2019-01-15 / 阅读(144) / 评论(0) 分类 卖房英语情景对话

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声,洪

发表于:2019-01-17 / 阅读(137) / 评论(0) 分类 托福英语

Holloa! cried stationary Elijah, hailing us when we had removed a few paces. 嗨! 我刚走了几步,站在后面的以利亚又吆喝起来。 Never mind him, said I, Queequeg, come on. 别理他,咱们走。 我招呼着魁魁格。 But he st

发表于:2019-01-29 / 阅读(172) / 评论(0) 分类 白鲸记

In an age of contactless cards and paying with your smartphone, the idea of getting cash out of an ATM machine may seem a little dated. 在这个非接触式智能卡和智能手机付款盛行的时代,去ATM机取钱显得有点过时。 But now

发表于:2019-02-07 / 阅读(144) / 评论(0) 分类 阅读空间

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin

发表于:2019-02-18 / 阅读(156) / 评论(0) 分类 英语新闻

Students at the Dalian Nationalities University in China have designed a bike washing machine that will wash your clothes while you pedal. The invention is aptly called Bike Washing Machine or BiWa, and it aims to bring health and convenience to our

发表于:2019-02-18 / 阅读(165) / 评论(0) 分类 阅读空间

1. Grisly / Grizzly 1.可怕的,严厉的,严重的/灰色的 2. Hoard / Horde 2.贮藏/一群 3. Hole / Whole 3.洞/整个 4. Instance / Instants 4.例子/瞬间 5. Insure / Ensure 5.确保/保证 6. Loath / Loathe 6.勉强的,不情愿的/厌恶

发表于:2019-02-21 / 阅读(251) / 评论(0) 分类 英语学习方法
学英语单词
AAF
absolute term
actual carrier
adsorbable
aeration period
agatelike
Airklubi
aiyo
alternate row seeding
aminophrminopyrinemoni test
antarctic treaty party (atp)
anti-capitalists
antisocially
arc jet engine
Arnemuiden
Arnica montana
auto decrement deferred index
barber's rash
Bargachia
battery cover
battery cupboard
biscuitroots
boiler control instrument
Calimera
case involving motor
chemeis
chucking capstan and turret lathe
clandestine possession
click chemistry
coaxial cylinder magnetror
convection-diffusion equation
Conway, Mt.
corticioid
crosstalk components unintellingible
customer special charge display
cutaneous acariasis
Dear Abby
diphenylsuccinic acid
double-door refrigerator
Drunksville
elastic potential energies
experiment control
fan-shaped round
fatty acid composition
FLETC
floor walker
galerucella grisescens
given me a shout
grafting component
graphic telluriums
half hour
heater-type thermistor
hoorle
icariresinol
independent partial tide
intraosteal
Iraq Inquiry
Kalkreuth
Malthusia
mercury neohydin
Mexican bean beetles
mitred core
mower cutterbar attachment
narrower band
net rate of heating
odontorrhagia
operation unit
pentadactyly
performance verification
persemic rock (c.i.p.w)
postreplication
private mail
pulse shape descriminator
purgatorio
radiation detection
radish seed oil
radius gyration
reflector frame
ribbon spiral conveyer
ruling power
satellite communication control facility
self-exiles
shoestring catch
single mode laser diode
ST_including-and-excluding_creating-alliances
STOMOXYIDAE
subsector
Synaprim
tee someone off
tentacle girdle
trade waste sewage
trip attraction
trustees
turbith
two-strand coil conveyer
Vaisheshika
vertical photograph
Walkers Ferry
winning back
Yayabo, R.
yevethan