红外地球敏感器

What isis the future outside the Marilyn Science Center.it's a full scale model of NASA'S James Web space telescope.Scientist believe the real thing will redefine our understanding of our place in the universe. It will be so unique it can look furthe

发表于:2018-12-02 / 阅读(156) / 评论(0) 分类 CNN2011年(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. Thisll just take a minute. Any school kid can tell you that comets are made of ice. That frozen water burning off is what gives comets their characteristic tails. But asteroids were g

发表于:2018-12-02 / 阅读(155) / 评论(0) 分类 Scientific American(四)月

Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this

发表于:2018-12-19 / 阅读(129) / 评论(0) 分类 环球英语 Spotlight

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi

发表于:2018-12-24 / 阅读(144) / 评论(0) 分类 Scientific American(十二)月

One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond

发表于:2018-12-24 / 阅读(133) / 评论(0) 分类 2017年Scientific American(二)月

Very roomy. For a single-seat fighter it's spacious. Plenty of room to lay out stuff we carry with us. The nose is cut and you won't see any perpendicular surfaces go around. The four probes in the front are not machine guns. And they are not hologra

发表于:2018-12-30 / 阅读(117) / 评论(0) 分类 国家地理2007年

Where Do Rainbows Come From? Throughout history, rainbows have been a source of mystery and legend. Rainbows are also important symbols in a number of cultures around the world. In the Old Testament o

发表于:2018-12-31 / 阅读(168) / 评论(0) 分类 有声英文阅读

May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the wipe. It smells sweet. Mom: That's OK. I prefer the hand-dryer. Oh, where is the switch? May:

发表于:2018-12-31 / 阅读(144) / 评论(0) 分类 英语大赢家下册

Captain, you wanted to see me? 上尉,你找我 Dai tells me that you're doing a fair job of taking over for Scott. He did? 戴告诉我你在找人接手斯科特的工作。是吗 I can only hope he's right. 我只能希望他是对的 We think t

发表于:2019-01-01 / 阅读(141) / 评论(0) 分类 陨落星辰第二季

Aqua Technology 水资源监测科技 A new weather-monitoring satellite has been 30 years in the making, and some researchers think it's worth the wait. We'll speak with a scientist about the Aqua satellite -- on today's Earth and Sky. DB: This is Earth a

发表于:2019-01-02 / 阅读(241) / 评论(0) 分类 (科普英语)Earth and Sky

For the first time ever, astronomers have discovered a system of seven Earth-sized planets orbiting around a single star. The finding was announced Wednesday by officials from NASA the U.S. space agency and other research team members. The discovery

发表于:2019-01-02 / 阅读(191) / 评论(0) 分类 2017年VOA慢速英语(二)月

This is Scientific American's 60-Second Science. I'm Steve Mursky. Got a minute? Orbiting around stars far far away is sand. Astronomers have found sandy particles circling a pair of stars about 2,400 light years from us. And they think they might be

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 Scientific American(三)月

在宾馆的洗手间里,妈妈和阿美碰到一些小问题,干手器坏了。到底怎么解决呢? Listen Read Learn May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the w

发表于:2019-01-11 / 阅读(129) / 评论(0) 分类 英语口语大赢家

Hearing Aid Common in Europe Turns Up Volume in US More than 10 percent of Americans have some form of hearing loss. Even with a hearing aid, deciphering sounds in places like airports, theaters and places of worship can be tough. However, a not-so-n

发表于:2019-01-13 / 阅读(138) / 评论(0) 分类 VOA标准英语2011年(十二月)

There was a day, about 10 years ago, when I asked a friend to hold a baby dinosaur robot upside down. 大概10年前的一天,我让一个朋友头朝下地握持一个小恐龙机器人。 It was this toy called a Pleo that I had ordered, and I wa

发表于:2019-01-16 / 阅读(144) / 评论(0) 分类 TED演讲科技篇

Remember joysticks? Those old things you used to control your game characters? Microsoft is hoping that youll forget all about them this winter. Earlier this month, it unleashed Kinect, a controller-free motion-gaming device for the Xbox 360 console.

发表于:2019-01-19 / 阅读(116) / 评论(0) 分类 中英双语新闻

By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method

发表于:2019-02-03 / 阅读(233) / 评论(0) 分类 2006年VOA标准英语(七月)

When you're out shopping it can sometimes feel like you're always stuck at the end of the longest line. 外出购物,总免不了碰上排队这个老大难问题:长长的队伍似乎总排不完。 Shoppers know this age-old dilemma all to well

发表于:2019-02-06 / 阅读(110) / 评论(0) 分类 阅读空间

【原文】 Where Do Rainbows Come From? Throughout history, rainbows have been a source of mystery and legend. Rainbows are also important symbols in a number of cultures around the world. In the Old Testament of the Bible, for example, God shows N

发表于:2019-02-16 / 阅读(101) / 评论(0) 分类 英语听力广播—Listening

Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this

发表于:2019-03-04 / 阅读(169) / 评论(0) 分类 环球英语 Spotlight
学英语单词
active corpus luteum
aircraft low-approach system
Angualasto
angular distribution of photoelectron
architectural geometry
barber's pole
block sterling
Block-rate structure
bootlickers
bradburn
brings around
candesce
cannibalic
CCPAO
chaetoceros crinitus
check valve ball
chopped ice machine
chromous bromoide
Colledara
color mask
current-collector for mine locomotives
Dailly
daily transaction
darktown
deep-draft ship
Dehydro-3-epiandrosterone
digital camcorder
diglottism
direct probability
disglorifies
diyala
driefat
edutained
efficient estimator
elenctic
emergency stop handle
extra-strong paper
extraction magnet
Ezzelino III da Romano
false filter bottom
floating exchange rate system
geographic isolate
Gia Nghia
green brickwork
heavy duty face lathe
Henderson-Hasselbalch equation
ice beam
impact type insole stapling machine
interminability
internal rate of return method
inukshuk
jean laffites
jobation
judicial temperament
kuwanaspis suishana
Lookout Pt.
Lusophobia
medium-energy type dyes
MIS luminescent device
moiri
nerney
nibble-nip
non-corrosive fibre
nonbone
Norconessine
old production line
oligoclasite
parceling
PO-ANTI-PO
Poa orinosa
portilla
preconceived notions
pregnandiol
proxima cause
quadrupole force
radial gradient
register description
risk of banking
scissor stairs
self-contain breathing apparatus
signature payment
specific gravity of urine
striate veins
tangarana
tantalous carbide
terminated task
terminating production
three-factor model of bar corrosion
tikrit
token instrument portable magazine
took their from
triethylstibine
ultracast
underpeep
unit of enumeration
untreated aggregate
Velsk
water conservancy
water-borne cholera
water-resistance
wjr
youthquake