高能激光大气传输

Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(

发表于:2018-12-01 / 阅读(227) / 评论(0) 分类 自考英语(一)78讲

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(105) / 评论(0) 分类 2013年VOA慢速英语(二)月

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(110) / 评论(0) 分类 2010年VOA慢速英语(十一)月

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(105) / 评论(0) 分类 2015年Scientific American(一)月

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 2017年VOA慢速英语(七)月

From VOA Learning English, this is the Education Report. A group of students from Kenya was among winners of the 2017 Zayed Future Energy Prize. The 10-member team is receiving a $100,000 award to make their school a green energy institution. The Zay

发表于:2019-01-02 / 阅读(115) / 评论(0) 分类 2017年VOA慢速英语(三)月

This is Valentines Day and this morning, we have a few words about love and money. According to research from a major credit card company, the average man spends about $130 on his sweetheart. Women, spend about half that. For people who want to spend

发表于:2019-01-07 / 阅读(194) / 评论(0) 分类 2006年NPR美国国家公共电台

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(169) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(139) / 评论(0) 分类 2012年VOA慢速英语(一)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(107) / 评论(0) 分类 2010年VOA慢速英语(九)月

AS IT IS 2014-07-10 Plastics Blamed for Harm to Sea Environment 塑料对海洋环境造成严重危害 A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recen

发表于:2019-01-12 / 阅读(107) / 评论(0) 分类 2014年VOA慢速英语(七)月

Last month, Washington, D.C., opened a new kind of trade school of which it is immensely proud. This is not one of the old-fashioned vocational schools that taught literal nuts-and-bolts repair work or hands-on career training in fields like auto re

发表于:2019-01-12 / 阅读(119) / 评论(0) 分类 VOA标准英语2008年(九月)

Energy Production Facing Limits of Water Scarcity发电面临用水危机 Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport,

发表于:2019-01-13 / 阅读(135) / 评论(0) 分类 VOA标准英语2012年(一月)

US Energy Production Facing Limits of Water Scarcity Nearly all forms of energy production use large amounts of water. Coal, which generates nearly 50 percent of the electricity in the U.S., needs water for mining and transport, and to cool and lubri

发表于:2019-01-13 / 阅读(112) / 评论(0) 分类 VOA标准英语2012年(一月)

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(150) / 评论(0) 分类 英语语言学习

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

发表于:2019-02-06 / 阅读(120) / 评论(0) 分类 英语新闻

如今,高端大气上档次已经成为众人耳熟能详的网络用语,凭借其无与伦比的受欢迎度,高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语,到底

发表于:2019-02-08 / 阅读(123) / 评论(0) 分类 英语口语

Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄,传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距

发表于:2019-02-16 / 阅读(133) / 评论(0) 分类 经济学人科技系列

The atmospheric pressure as we climb is getting so low 气压在逐渐减小 that without any air supply,I'd be unconscious within 20 seconds. 如果不戴呼吸器 不用20秒我就会休克过去 I have to breathe 100% oxygen to avoid getting nitro

发表于:2019-02-17 / 阅读(106) / 评论(0) 分类 荒野求生

16.The early railroads were........the existing arteries of transportation: roads,turnpikes, canals,and other waterways. A.those short lines connected B.short lines that connected C.connected by short lines D.short connecting lines 答对率:50% 答案

发表于:2019-03-12 / 阅读(176) / 评论(0) 分类 托福英语
学英语单词
acetylmuramylpentapeptide
Aepyginae
Bailieborough
calciotalc
caliciform cell
cell constant
central medial nucleus
char washing
character impulse disorder
chasa
chovanec
civic literacy
colloidal powder
comfortably off
commutator bar slot
continuous on the right
coparticipation
cormorous
corrosion proofing
coudert
cylindrical platen
debacarb
dew worm, dew-worm
direct read during write
domestic exchange unsettled account
dyhexagonal (dihexagonal)
embarcaderoes
employee service award
fearing
film integrated circuit
Flyinge
for-profits
frogese
fuel cell
fuzzy texture
gangsa
general market risk
genus Botaurus
go to a lot of expense
graphic sign
ground telemetering station
helium container
helping behavior
hepatic cell
homoechilidium
ideal paraplegia
integral-of-time-multiplied absolute-error criterion
interal ear
intermediate clone
isorhodopsin
joint current
kalkadoon
liver Lactobacillus casei fsctors
macroanatomy
Malet
missile defense alarm system (midas)
misweened
Morris water maze
muted
Nabatîyé, Governorate
nevus fuscoceruleus acromiodeltoideus
nonaerial
nondegradable
oil water interface
overload and rupture test
Oytal
passteurization
perpetual subordinated debt
photo-offset process
photooxidations
Portaje
rami apicalis lobi inferioris
Reinwardtia indica
remonstrances
renascence
reticulate cleavage
run of block
running-in time
saddle flange
Samulun, Selat
Sanson Flamsteed projection
Sedum telephium
semiconvection
sensory hair cell
single skin type
skepticalness
special tooling
stingless
Stylosanthes gracilis
sub.
succinylated monoglycerides
surface drag
take someone in hand
terrestrial horizon
thread processing
trickling filter high rate
unsluice
vehicle side slip angle
virgin forest
water desorption curve
yeux
zone service