行星齿轮式双级主减速器

Learning to drive Callum: Hello and welcome to 6 Minute English, I'm Callum Robertson and with me today is Kate, hello Kate. Kate: Hello Callum. Callum: Now if I say to you the three words mirror, signal, manoeuvre(策略), what goes through your

发表于:2018-11-29 / 阅读(302) / 评论(0) 分类 六分钟英语

美语听力与发音技巧 第1期 Welcome to Daily tips on Learning English. Today's tip is on distinguishing “can” and “cannot” in spoken American English. “Cannot” is usually contracte

发表于:2018-11-30 / 阅读(178) / 评论(0) 分类 美语听力与发音技巧

Welcome to Daily tips on Learning English. Today's tip is on distinguishing can and cannot in spoken American English.今天我们的主题是can和cannot发音的区别 Cannot is usually contracted to can't. 通常我们在发cannot这个词的时候我

发表于:2018-12-02 / 阅读(164) / 评论(0) 分类 手把手教你学口语

SCIENCE IN THE NEWS - Gore's Movie Heats Up Discussion of Global Warming (and Has His Critics Steaming)By Caty Weaver and George Grow Broadcast: Mon, 3 Jul 2006 16:00:00 UTC (MUSIC) VOICE ONE: This is

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

This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute? Astronomers have already discovered hundreds of exoplanets. But make way for the new kid, which is orbiting a kind of star that models say it shouldnt. Researche

发表于:2018-12-24 / 阅读(167) / 评论(0) 分类 Scientific American(十一)月

Only in the States Only in the States can a pizza get to your house faster than an ambulance. Only Americans order double cheeseburgers, large fries and a Diet Coke. Only in the U.S.A. do they have drive-up ATM machines with Braille lettering. Notes:

发表于:2018-12-26 / 阅读(132) / 评论(0) 分类 英语笑话(MP3+文本)

Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy wit

发表于:2018-12-30 / 阅读(174) / 评论(0) 分类 国家地理2008年

This is Whats Trending Today. Last week, the American space agency NASA announced it was looking for a Planetary Protection Officer. Many people discussed the job on social media. The Washington Post called the jobs title one of the greatest ever con

发表于:2019-01-02 / 阅读(186) / 评论(0) 分类 2017年VOA慢速英语(八)月

By David McAlary U.S. astronomers have made a finding they say increases the chance that distant stars may harbor planetary systems like our own. They have discovered two planets the size of Neptune e

发表于:2019-01-03 / 阅读(193) / 评论(0) 分类 VOA2004(下)--健康科技

PISCES February I9 to March 20 The Piscean is the ideal silent partner. When actively engaged in a partnership, he is apt to be too indecisive, and either too suspicious or too trusting. His emotions invade everything and they are not clear-sighted.

发表于:2019-01-03 / 阅读(186) / 评论(0) 分类 趣味英语

By Mike O'Sullivan Los Angeles 20 December 2006 The Planetary Society, an organization that promotes space exploration, has teamed up with NASA to send a digital greeting card to Mars aboard the Phoenix lander, an unmanned space probe, on a mission

发表于:2019-01-12 / 阅读(235) / 评论(0) 分类 2006年VOA标准英语(十二月)

Juno Spacecraft Launches Toward Jupiter The U.S. space agency launched the Juno spacecraft from the Kennedy Space Center in Florida Friday, beginning a five-year journey to Jupiter. 3,2,1. Ignition and liftoff of the Atlas 5 [rocket] with Juno on a t

发表于:2019-01-14 / 阅读(213) / 评论(0) 分类 VOA标准英语2011年(八月)

Like a phoenix rising from the ashes, astronomers have found a whole new solar system may be forming in the wake of a star's violent death. This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy with

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2008年

The Prime Meridian(本初子午线) here is the longitude, the mark on the ground, from which all great voyages are measured. This is the view back to our remarkable home planet/ that the first human out here can look forward to, a distant blue dot l

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2012年

Still, statistically the probability that there are other thinking beings out there is good. Nobody knows how many stars there are in the Milky Wayestimates range from 100 billion or so to perhaps 400 billionand the Milky Way is just one of 140 billi

发表于:2019-01-29 / 阅读(145) / 评论(0) 分类 万物简史

First Solar Sail to be Launched into Orbit from Russian Submarine 俄潜艇首发太阳反射器进入轨道 A solar sail might do for space missions what fabric sails once did for sea travel.It would

发表于:2019-01-31 / 阅读(213) / 评论(0) 分类 VOA2005(下)--环境科学探索

GUANGZHOU, July 8 (Xinhua) -- After two big wins over Tunisia and Australia, the Chinese basketball team proves its best form again by beating Russia 73-67 in the third game and got a berth in the final at the Stankovic Cup here on Sunday. China was

发表于:2019-02-13 / 阅读(124) / 评论(0) 分类 英语新闻

Shanghai is looking to add a new economic driver to its growth as the city approves a draft plan to transform the city into a technological innovation center. The proposal declares the city will become such a center with global influence by 2030. The

发表于:2019-02-18 / 阅读(237) / 评论(0) 分类 cctv9英语新闻2015年

Scientists Say New Diet May Save Planet From VOA Learning English, this is the Health and Lifestyle report. 欢迎收听美国之音学习英语栏目,这里是健康与生活频道。 Scientists in London say they have found the best diet for both

发表于:2019-02-19 / 阅读(223) / 评论(0) 分类 2019年VOA慢速英语(二)月

A: How's it going? B: Good. How about you? A: Not bad, thanks for asking. B: Have you been on the bus for a while? A: Only about fifteen minutes. B: Do you ride this bus often? A: Not really, I usually drive. B: You have a car? A: Yes, I do. B: So wh

发表于:2019-02-27 / 阅读(193) / 评论(0) 分类 乘公交-Taking the Bus
学英语单词
a box
A straw shows which way the wind blows.
afterguard
alpha-trimmed mean
amelio
apiculturist
atmospheric feeder
automatic currency
bilardo
biosociologist
blaise (la blaise riviere)
blanket liens
Bond girl
Bowie Canyon
bruge
BSIRA
ceded company
Changjiang
clock-faces
concentrated charging
copy editing
darryls
declaration of trust
destructive lumbering
destructless
distribution ratio of silica
dog's ears
double-flights
drying constant
dual structure
ear marking
echoviral
endomychus sasajii
epithelial-like layer (or epitheliomorph layer)
Esociformes
Ewing, Mt.
extragalactic object
facetiae
flareth
globentyl
Guinness, Sir Alec
Hieronymus
inner membrane
irregulata(irregular) echinoids
kindle up
Kingdom of Belgium
lookback
lsg
lubricating oil stocks
lysogenic cycle
main throttle valve
Mak-Klintoka, Ostrov
marcrophage
milirems
model performance
naphthe
nervus statoacusticus
neutron density
Nevralgina
nod-crafty
o(v)ocyte
ouinn
outline symbols
pessimizes
Phlogacanthus
photon-deficient
Plasmodium vivax
plaster head
power-frequency voltage
pulse-time-modulated radiosonde
radioarsenic
Radix Inulae
refugeless
rocker fulcrum shaft
sabulous
scrimshanker
sentence phonetics
sequential cipher
sheep cot
short-comer
Silene firma
soft-line
square detector
static externality
stock receipt
stress relief
strike below the belt
substitute food
subvariances
swept frequency interferometer
task run
thwackings
tombes
trace paper
trifles
Tutaguana
undisturbed forest
withholding agent
work-factor
yhandled
yook