[网络] 牛顿反射望远镜;牛顿式;式天文望远镜
词型变化:名词复数形式 : newtonian reflectors
【近义词】

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(205) / 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(226) / 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(207) / 评论(0) 分类 电信英语

French fries are delicious. French fries with ketchup are a little slice of heaven. 我们都知道炸薯条很好吃,再配上番茄酱简直就是人间美味。 The problem is it's basically impossible to pour exactly the right amount. 但问题是

发表于:2019-01-17 / 阅读(194) / 评论(0) 分类 TED演讲教育篇

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(228) / 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(187) / 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(229) / 评论(0) 分类 VOA常速英语2007年(十一月)

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(274) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
'Eynābād
-opic
a doll
achromasias
agaricin acid
americium sesquicarbide
aphanoconia hungerfordianum hainanensis
automatic reactive power regulating
bannition
bifurcatonnes
Bmouse
bomber harriss
breakdown process
cacaomycin
cardiges
catforming
catops miensis formosensis
certificate of analysis
Comcomly
cooling-out
dark ruby silver (pyrargyrite)
darwinian tubercle
declaring against
detection technique
dromometer
edge cover
finished side leather
float needle valve
fluid end of pump
goffin
gt/sql
heat sealable
high-octane
homographs
horse bezoar
hot
hot house
hydrops tubas profluens
indefinible
intercotylar
International Conference on Marine Pollution
interxylary
itinerances
Japanese oyster
Justicia hainanensis
kern-babies
lasting of ice cover
LMAT
loewith
Londoko
low-noise and low vibration electric machine
lrra
lupinus micranthus douglas
mass opal
masters of ceremonies
money-wages
neurosprora sitophila
non-melt grease
open-air seasoning
palacefuls
Pavlof
perihelias
portable field spectrometer
predicatorial
propagation constant
property inheritance
proteino-
pull an oar
pycnomorphous
pygmy glider
range hole
reticketed
roasted pyrite
sample characteristic function
self-wit
short-processing techniques
sht
single roller chain coupling
sistoes
sorites-paradox
spatial data
spoken-word center
spot news
stable steady state
storage class
swertiamacroside
teachress
tichodromes
timetransgressive
torpified
transcocrystallized Al-Si alloy
tropical vortex
tunicae mucosa uteri
under the prod of
unlabelled
Vallot helio-thermometer
vanilione
visual detector
waddly
waiting gentlewoman
Wei-jing
Zelënodol'skiy Rayon