[网络] 真空紫外线雷射;真空紫外线激光

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(156) / 评论(0) 分类 Scientific American(十二)月

苏珊和安德鲁今天讨论的主题是人工智能..... Andrew: Some people are really interested in artificial intelligence and the role that it will play in the future. Other people dont care at all. So I would say that Im in the first camp. I

发表于:2018-12-03 / 阅读(144) / 评论(0) 分类 话匣子英语

She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She

发表于:2018-12-07 / 阅读(135) / 评论(0) 分类 原版英语小短文

HEALTH REPORT - Health: Looking for Skin CancerBy Brianna Blake Broadcast: Tue, 4 Jul 2006 16:00:00 UTC I'm Faith Lapidus with the VOA Special English Health Report. Tanning beds produce ultaviolet ra

发表于:2018-12-07 / 阅读(137) / 评论(0) 分类 2006年慢速英语(七)月

Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it

发表于:2018-12-11 / 阅读(146) / 评论(0) 分类 365个英语简短小故事

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell about a new cancer treatment and a study of the disease malaria. We will tell about the possibility of drier con

发表于:2018-12-16 / 阅读(120) / 评论(0) 分类 2010年VOA慢速英语(十一)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This will just take a minute. Ben Franklin started it and it's hotter than ever: research on lightning. For the first time, a team of European scientists have used lasers to create

发表于:2018-12-24 / 阅读(133) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 Scientific American(五)月

This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one

发表于:2018-12-24 / 阅读(140) / 评论(0) 分类 Scientific American(五)月

There Paul Jobs could tinker with cars and his son with electronics. 在车库里,保罗乔布斯可以修汽车,而他儿子可以玩他的电子设备。 Its other significant attribute was that it was just over the line inside what was then th

发表于:2018-12-26 / 阅读(114) / 评论(0) 分类 乔布斯传

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(130) / 评论(0) 分类 美国英语听力80篇

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(210) / 评论(0) 分类 (科普英语)Earth and Sky

Studies are finding that the vitamin known for building strong bones may also help prevent many diseases. Transcript of radio broadcast: 15 July 2008 This is the VOA Special English Health Report. Vitamin D helps bones and muscles grow strong and he

发表于:2019-01-11 / 阅读(138) / 评论(0) 分类 VOA慢速英语2008年(七)月

STEVE EMBER: Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about one of the most recognizable objects in science fiction the laser. And we tell how the laser has made its mark in the

发表于:2019-01-12 / 阅读(118) / 评论(0) 分类 2010年VOA慢速英语(九)月

Lasers Used to Chill, Instead of Heat 有史以来第一次:科学家使用激光冷却液体 University of Washington researchers say they used a laser to turn hot water into cool water. Five engineers from the university are the first in the 50-yea

发表于:2019-01-12 / 阅读(102) / 评论(0) 分类 2015年VOA慢速英语(十二)月

LULU GARCIA-NAVARRO, HOST: Forget about scarecrows. Some farmers are using laser beams to shoot thieving birds from their fields. From the berry fields of Oregon, Tom Banse of the Northwest News Network brings us this report. TOM BANSE: Blueberry and

发表于:2019-01-17 / 阅读(106) / 评论(0) 分类 2018年NPR美国国家公共电台8月

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(121) / 评论(0) 分类 托福英语

主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握

发表于:2019-01-22 / 阅读(142) / 评论(0) 分类 NPR边听边练

A new 'health' trend in Hong Kong sees women staring straight at the sun in the belief that it will replace their need for food and even improve their vision and sleep quality, reports Oriental Daily. 据《东方日报》报道,香港女性中兴起

发表于:2019-02-15 / 阅读(185) / 评论(0) 分类 阅读空间

A man who created neon noodles is being scrutinised as he's refusing to reveal what exactly has given them their crazy colours. 由于拒绝披露关于五彩面条的上色细节,霓虹色面条的发明者受到严厉审视。 The fluorescent foo

发表于:2019-02-18 / 阅读(151) / 评论(0) 分类 阅读空间
学英语单词
a.w.o.l.
acorn starch
adiposis obesity
admit daylight into sb
alcacer do sal
alepride
apterygida tumida
ASA-158/5
Ayuan
Benedict VIII
Bipont
Birkeland current
blastemal
body flange
Carl Van Doren
check sides
cladocarpous
cod end
combined read-write head
commercial fishing
complex mechanization
copper subcarbonate
cuticular crest
cyclobutyl
deciduous skin
dinner parties
diseased people
drive flow
Einstein mass-energy relation
electric bowl
estimation of variance of noise
flight strip design
forge shop
from day one
functional activities of the body fluid
goalkickings
gocar
grammar-based definition
greek-styles
hadrosauriforms
haplomonoecious
helicidin
hen louse
histologic lesion
hog-trough
ice cream cone baking machine
industrial control module
inspection window
interbank rate
Kandat
kinetic moment
Louis, Victor
low-pressure casting
Luciferianism
mancos
maximowicziana
mazework
mcaliskey
mechanical penthouse
mediavision
Medicredit
methaniazid(e)sodium
micromainframes
modom
moof
motion parallax
muff heater
muscle clamp
overarm lapping machine
peptostreptococcal
plate slenderness parameter
pollutant type
power of punishment
pronominally
radde
radiodetector
schor
seismic-piezoelectric effect
semirounded
sewing needle
silc
single sideband frequency modulation
solid drawn
spireme
St-Berm-sur-Mer
storage interface device
stud-book
subsections
Tanner Basin
tarbaby
technical allowance or assistance
The leopard cannot change its spots
translation factor
two-dimensional location
under its own power
undescribability
unilinear cultural evolution
Vigna unguiculata subsp. sesquipedalis
visualizes
Walburga, Saint
whaleman
zygantra