[光] 色散光学

1) Split-second lunches, 2) color-keyed 3) disposable dishes — all part of the instant society of tomorrow. The early vision of disposability was that somehow it just melted into the atmosphere. The

发表于:2018-11-28 / 阅读(184) / 评论(0) 分类 疯狂英语2002年

They Did It With Mirrors! You can’t stand in front of the paintings of the old masters and not wonder, how did 1) Frans Hals make that lace seem so real? How did 2) Van Dyck make his armor so gleami

发表于:2018-11-28 / 阅读(208) / 评论(0) 分类 疯狂英语2003年

The EPA is now telling BP to change the chemical dispersant. The government agency wants BP to choose something less toxic now. CNN's Ed Lavandera has more on one alternative that is already to go. Hundreds of containers are just sitting here in the

发表于:2018-12-02 / 阅读(146) / 评论(0) 分类 CNN2010年(五)月

Today's topic is active voice versus passive voice. Here's Brian from Iowa: It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and stay away from passive voice? Th

发表于:2018-12-07 / 阅读(123) / 评论(0) 分类 英语语法 Grammar Girl

by Jason Marshall Lets kick things off with a bit of a strange question: If you were asked to walk up two stairs and then immediately back down three, how would you describe the total number of stairs youd climbed relative to where you began? Do any

发表于:2018-12-07 / 阅读(81) / 评论(0) 分类 数学英语

We're seeing another steep slide in US stocks and in other major market over fears Europe's debt troubles could undermine global economic recovery. At last check, the Dow was down more than 330 points at 10,109. NASDAQ was down 84 at 2,213. SP 500 do

发表于:2018-12-17 / 阅读(84) / 评论(0) 分类 2010年NPR美国国家公共电台5月

Newtons Apple Tree 牛顿的苹果树 Newton was an English physicist and mathmatician,and was the greatest scientist in his era. 牛顿是一位英国物理学家和数学家,也是他那个时代最卓越的科学家之一。 Isaac Newton was bor

发表于:2018-12-18 / 阅读(115) / 评论(0) 分类 走进剑桥大学

We known that Fridays are awesome, but you know what todays show could use? A mascot and weve got one coming up for you in about eight minutes. Im Carl Azuz. Lets get to it. First up, top kill. It sounds like something pretty bad. Officials are hopin

发表于:2018-12-20 / 阅读(102) / 评论(0) 分类 CNN2010年(五)月

九地篇 NO.6: 凡为客之道,深则专,浅则散。 去国越境而师者,绝地也; 四通者,衢地也;入深者,重地也;入浅者,轻地也;背固前隘者,围地也;无所往者,死地也。 是故散地,吾将一

发表于:2018-12-29 / 阅读(84) / 评论(0) 分类 孙子兵法

九地篇 NO.1: 1.用兵之法,有散地,有轻地,有争地,有交地,有衢地,有重地,有圮地,有围地,有死地。 诸侯自战其地者,为散地;入人之地不深者,为轻地; 我得亦利,彼得亦利者,为

发表于:2018-12-29 / 阅读(92) / 评论(0) 分类 孙子兵法

Grammar Girl here. I'm on vacation this week, but before I left I updated one of the early episodes that I took down a few months ago. I hope you enjoy this new and improved version. Today's topic is addictive versus addicting, and we'll get to use a

发表于:2019-01-02 / 阅读(136) / 评论(0) 分类 英语语法 Grammar Girl

Direct Inward Dialing (DID) DID is PBX-to-central office trunks that allow incoming calls to a PBX to ring specific stations without attendant assistance. DID greatly reduces the number of required co

发表于:2019-01-03 / 阅读(105) / 评论(0) 分类 电信英语

President Obama is reaffirming a pledge to end US combat operations in Iraq by the end of the month, but he told a gathering of disabled veterans in Atlanta today about the military's huge shift to the other hot zoneAfghanistan. We will continue to f

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 2010年NPR美国国家公共电台8月

My heart is leaving you It says goodbye Disppearing from you tonight Not a breeze is gonna pass you by There are sailing boats There are ships Broken rafts adrift I'm jumping on What ever's passing by I've blown the candle out That you forgot I've ma

发表于:2019-01-11 / 阅读(93) / 评论(0) 分类 美国乡村音乐

There are many endurings mysteries about the great barrier reef,particularly at night,but this is one of the more enchanting ones.Watch this.This coral is fluorescing under ultraviolet light,it's this amazing light show,and it covers pretty much the

发表于:2019-01-22 / 阅读(75) / 评论(0) 分类 自然百科2014年

Its a stunning location, but its also mysterious. These stars are not just close together. They are on the move at enormous speeds. Going to the heart of a galaxy might not be the similar to going to an amusement park. The rides are some similar to h

发表于:2019-01-22 / 阅读(248) / 评论(0) 分类 自然百科2011年

By Jim Malone Washington 01 February 2007 Senator Joe Biden of Delaware is the latest Democrat to join the race for president in 2008. But Biden already finds himself on the defensive over some comments he made about one of his rivals, Illinois Sena

发表于:2019-02-03 / 阅读(166) / 评论(0) 分类 2007年VOA标准英语(二月)

Sylvia: How would you like to take my sister, Donna, to the movies this weekend? Youd be doing me a favor. Joon: Why? Whats wrong with her? Sylvia: Nothing is wrong with her! She just broke up with her boyfriend of four years and shes down in the dum

发表于:2019-02-04 / 阅读(94) / 评论(0) 分类 地道美语播客

Since the April 20 explosion and fire that sank the BP Deepwater Horizon off-shore oil rig, about 800,000 liters of crude oil a day have been spewing from the broken well into the Gulf of Mexico. The massive spill is threatening marine life, commerci

发表于:2019-02-05 / 阅读(166) / 评论(0) 分类 VOA标准英语2010年(五)月

可以调焦的眼镜? They may look like an ordinary pair of spectacles, but these glasses are at the forefront of a revolution in eyewear. 它们看起来像普通的眼镜,但是是眼镜改革的最前沿。 Part of a new line of electronic eye

发表于:2019-02-07 / 阅读(123) / 评论(0) 分类 实用英语
学英语单词
acetoxyisovalerylakannin
Aconitum longecassidatum
alcenis
alka-seltzers
aminobenzylation
analyzer grating
anti-beriberi vitamin
arenaria ser-phyllifolia l.
assignment desk
Bakers Mill
be in a lather
beamsplitter holder
berlinite
black insulating varnish
bradville
bufothionine
Caboc
celess
cicraticine
claude levi-strausses
CofS
come out of the red
commodity composition of import&export
Congreve rockets
copper nickel antimony lead bronze
corresponded
Craigmyle
criteria of inverse probability
Cymnogenesis
deregenerative feedback
determination of volume of tree
digital mapping
dna-chip
duodenums
escapees
euphonically
first - year student
Forano
fotive
fresh-air intake
Gaetan Vestris
Geranium wifordii Maxim.
gimon
Gludsted
group-buying
hectocotyli
high impact
high-stepper
humanities
hurting dance
interquery
IUML
jerramy
Kikuyu grass
lanthanium titanate
latched in contact
lay in the oars
low key tone
marker frequency
mean observatory
mechanical ruggedness
Medical Records
negative capacitance capacitor
neonatal birthmarks
number transfer bus
online test
optimal taxation
overshielding
periappendicular abscess
photo-electro-luminescence
physiological tolerance limit
plastic pallet
polish off something
principal stages of development of the embryo
pulse-rate telemetering
quatercentenaries
relative heat resistance
remove dampness through diuresis
sasakawa
self-aligning double-row bearing
ship search manoeuvre
simllia similibus curantur
skerm
solemnizes
space-time
splash proof type
superradiance
take good cheer from
tax payment receipt
telescopic conductor
temporal aggregation
thinning in the upper story
two-action trunk
type of tariff
unrevised
vapourific
VHF rotation talking beacon
volkovas
water-flower
wayout
wollastonite porcelain
Yeay Sen