准周期轨道

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(103) / 评论(0) 分类 数学英语

AS IT IS 2016-10-18 Supermoon Photos Around the World 世界各地拍摄到的超级月亮 This is Whats Trending Today. Something called a supermoon rose at night on October 15 and 16. That is when the moon is full, closer to Earth than usual, and l

发表于:2018-12-08 / 阅读(118) / 评论(0) 分类 2016年VOA慢速英语(十)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute Happy New Year! And dont feel bad about taking today off. After all, youve traveled far. And Im not talking about the trip home from the party last night. According to N

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 Scientific American(一)月

Idiom: Move heaven and earth 经历千辛万苦做成某事 Hit the books: 1. space station 空间站 2. soil 土壤 3. astronaut 宇航员 4. orbit 轨道,围绕进行旋转 5. unreliable 不可靠的 6. laptop 手提电脑,笔记本电脑 7. ch

发表于:2018-12-27 / 阅读(72) / 评论(0) 分类 趣味青春英语

IN THE NEWS - Pluto and Dark Matter Both Star in a Busy Week for AstronomersBy Brianna Blake Broadcast: Saturday, August 26, 2006 This is IN THE NEWS in VOA Special English. Pluto compared to other so

发表于:2019-01-02 / 阅读(67) / 评论(0) 分类 2006年慢速英语(八)月

Space Crew to Enjoy Thanksgiving Feast in Orbit The three crew members on the International Space Station plan to have their own Thanksgiving feast on Thursday as they orbit 352 kilometers above the earth. The lone American on board plans to share so

发表于:2019-01-06 / 阅读(61) / 评论(0) 分类 VOA标准英语2011年(十一月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We residents of the Milky Way should have a little extra skip in our step today. Turns out our home galaxy is much bigger and moving a lot faster than we previously th

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(126) / 评论(0) 分类 Scientific American(十)月

Is There a Ninth Planet in Our Solar System? 科学家称发现太阳系新行星 Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute of Technology Caltech -- said this plan

发表于:2019-01-12 / 阅读(223) / 评论(0) 分类 2016年VOA慢速英语(一)月

China's first cargo spacecraft has refueled the Tiangong-2 space lab in orbit for the first time. Tianzhou-1, which was launched April 20th from Wenchang Space Launch Center in south China's Hainan Province, successfully completed an automated dockin

发表于:2019-01-19 / 阅读(112) / 评论(0) 分类 2017CRI中国国际广播电台

Hours after Tiangong-2 was successfully launched, the space lab conducted its first transfer of orbit at 2:45 am Beijing time on Friday morning. In the meantime, it has also started in-orbit tests, which are a series of examinations on the functions

发表于:2019-01-19 / 阅读(81) / 评论(0) 分类 2016CRI中国国际广播电台

Space exploration 太空探索 The end of the Space Age 太空时代的结束 Inner space is useful. Outer space is history 研究内太空才有用,让外太空研究成为历史 Jun 30th 2011 | from the print edition HOW big is the Earth? Any enc

发表于:2019-01-26 / 阅读(74) / 评论(0) 分类 经济学人综合

EXPLORATIONS - 'The Greatest Experience': Ed White Goes for the First American Walk in SpaceBy Marilyn Christiano Broadcast: Wednesday, August 02, 2006 EXPLORATIONS -- a program in Special English by

发表于:2019-01-30 / 阅读(67) / 评论(0) 分类 2006年慢速英语(八)月

LONDON, May 11 (Xinhua) -- A controversial steel tower was unveiled in the Olympic park of London on Friday, about two and a half months before opening of the Games, which was hoped to become of a new icon of the city and bring more visitors. The tow

发表于:2019-02-05 / 阅读(66) / 评论(0) 分类 英语新闻

The U.S. space agency NASAs Messenger probe(正直的,廉洁的 ) is scheduled to reach Mercury later this week, and become the first spacecraft to orbit the planet closest to the sun. During Messengers year-long orbital mission, scientists exp

发表于:2019-02-05 / 阅读(76) / 评论(0) 分类 英语新闻

The U.S. space probe MESSENGER is poised to enter orbit around Mercury(水银) early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting

发表于:2019-02-05 / 阅读(72) / 评论(0) 分类 英语新闻

WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said. The second Gravity Recovery And Interior Laboratory, o

发表于:2019-02-05 / 阅读(94) / 评论(0) 分类 英语新闻

MOSCOW, Aug. 30 (Xinhua) -- Russia's space agency said Tuesday that a Proton-M rocket launch failed earlier this month because of a malfunction in the upper stage. The conclusion was reached by an independent investigation commission following a seri

发表于:2019-02-11 / 阅读(75) / 评论(0) 分类 英语新闻

TEHRAN, Oct. 9 (Xinhua) -- Iran is going to launch domestically- built Navid satellite by Safir satellite launcher by the end of March 2012, the semi-official Mehr news agency reported on Sunday. Navid (promise) is a research satellite and is current

发表于:2019-02-18 / 阅读(79) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Dealing with asteroid strikes 应对小行星撞击 A close shave 近地掠过 After a hit and a near miss minds are focusing on the risks from space rocks 在一次撞击和一次近距离擦肩而过后,人们开

发表于:2019-02-18 / 阅读(102) / 评论(0) 分类 经济学人科技系列
学英语单词
acoustical characteristic impedance
acumulative temperature
allmark
alternate account
annu
antiholin
antirace
aproximately
atmospheric waveguide duct
audience fragmentation
aurilave
averaging mode
bull riveting
bumblings
C of G
cell geometry
central oval
cesarean delivery
chlorophosphonitrile rubber
chopped lightning impulse
Claviton
cobelligerency
colpogynon
congolenst trypanosoma
counted in
Cremanthodium palmatum
del credere contract
disease diagnosis
disposal pond
drunkerd
effrenate
Elaeocarpus prunifolioides
eunuchry
Ewing family
external device response
file browsing
fine feed adjustment tank
finite system of generators
fire resisting damper
gauge of track
geared-motor
gene knockout technique
grevers
gum tragacanth
harbors statistics
hawkweed
HPQ
hydro-cooler
inlumined
input rate
jelly drink
key unit
Korvatunturi
labour-markets
Lasergraphic plotter
macro assignment statement
major repair depreciation rate
man tit
Mechano-thermoreceptor
mechanoagymnastics
meganephridia
meliola panici
menskfully
moderate strength
modulational
moisture welts
multiplier-divider unit
myeloneuropathies
Nagyhegyes
natural regeneration under shelter-wood
O. S. R.
offer an exhibit
palafoxes
pancheon
Pedicularis songarica
phylum nematodas
physostegias
planchet casting
pseudo-finite-set
radioecological
radir
rainert
refraction seismology
relishes
repugnatorial gland
Sambeek
seeth
sense training
spoilum
stream barker
T3-euthyroidism
taciturn
TBGP
temperature self-compensation
thirteen-year-olds
trade schools
traipsings
tricro
TRIGA (training research and isotope production reactor)
trust arrangement
visioplasticity
zapkowski