厄瑞西柏反射器

Hurricane Maria Hit Puerto Ricos Giant Telescope Hurricane Maria severely damaged Puerto Ricos electricity and communications systems. Millions of people there are without power, water or food. 飓风玛利亚严重破坏了波多黎各的电力和通信

发表于:2018-12-08 / 阅读(199) / 评论(0) 分类 2017年VOA慢速英语(十)月

In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 Scientific American(四)月

据《科学》杂志报道,苏联的月球车40年前在月球表面留下了激光反射器,虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日,一组物理学家终于发现了来自反射器的微弱闪

发表于:2019-01-02 / 阅读(174) / 评论(0) 分类 60秒科学

Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar

发表于:2019-01-03 / 阅读(160) / 评论(0) 分类 电信英语

DAVID GREENE, HOST: Puerto Ricans say it is taller than the Statue of Liberty. This is the tallest statue of Christopher Columbus in the world we're talking about. It's a towering, 350-foot tall bronze statue of the explorer, and it is perched on the

发表于:2019-01-16 / 阅读(146) / 评论(0) 分类 2017年NPR美国国家公共电台10月

The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e

发表于:2019-01-19 / 阅读(180) / 评论(0) 分类 2016CRI中国国际广播电台

Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst

发表于:2019-01-22 / 阅读(141) / 评论(0) 分类 英文短篇故事(纽约)

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(175) / 评论(0) 分类 VOA常速英语2007年(十一月)

Voice 1 Thank you for joining us for Spotlight. Im Liz Waid. Voice 2 And Im Joshua Leo. 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 Angel Rodriguez liv

发表于:2019-02-14 / 阅读(131) / 评论(0) 分类 环球英语 Spotlight

The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for

发表于:2019-02-21 / 阅读(210) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
a short distance
ahead pitch
aidothymidine
alfilerias
algebraic branch point
alteenariatoxicosis
anadromous fish
animal tissues
anthophily
aphytis lepidosaphes
art school
Atterberg scale
Beach Lake
benaissa
blennisthmia
borrowed words
borrowing limit
bulk phase concentration
Canfield Lake National Wildlife Refuge
center tapped resistor
central pylon
chazyan age
coated card
columelliform
consentient
cross-impact technique
Desmoscolecida
dichotomous cyme
disarmed interrupt
dobberstein
drag force
eave tile with pattern
eight-block
electron energy state
emulsion shelf life
enclosed container
equivalent radar area
extreme lateral occlusion
feitel
flashpacking
formulisms
fusidine
gastrointestinal bleedings
gema
glaucogenin
gnathodynamics
golden currant
Gordiacea
group accounts
heat cured insulation
horizontal sulcus of cerebellum
hypertext organization
identifier number
intercompares
inverted dip
Izod impact tester
Jakob Behmen
Kharvār
Kia-ting
Li Zhizao
linearity error
lovelady
lymphomatosis granulomatosa
manthine
medical rational beauty
merchandise return
nomady
Ocotepeque, Dep.de
open-top single lantern
pentaribonucleotide
pisidia serratifrons
pre tax accounting income
pudil
pulverized fuel exhauster
push-button ship
quibble
quick closing
Racconigi
regional editor
remailed
scalable encryption processing
scaling symmetry
scheduling of task
seven-double
snap tap
speech-house
spongilla flies
stabilogram
stagger juice
strong local extremum
talegallas
test team
theory of limited memory storage
thermosopic bar
uniform section
urocyon
vote of confidence
weighing down
wife-takers
wordely
Wye, R.
zardis