[航] 双级推力火箭发动机

3 Pines 松树 John Ruskin 约翰拉斯金 The pine, placed nearly always among scenes disordered and desolate, brings into them all possible elements of order and precision. Lowland trees may lean to this side and that, though it is but a meadow bre

发表于:2018-12-03 / 阅读(119) / 评论(0) 分类 2013年ESL之商务英语

NASA Successfully Tests Hypersonic 1 Jet Three years after its first test flight ended in an explosion, NASA on March 27 successfully launched an experimental jet that the agency believes reached a re

发表于:2018-12-05 / 阅读(99) / 评论(0) 分类 英语沙龙2004全年合辑下

Going up quickly, like a rocket Helen: Hello, this is Real English from BBC Learning English. Im Helen. Zo: 你好吗? 我是刘佳。 Helen: Today were going to look at words and phrases that have recently become part of the English language. Zo: 地道英语

发表于:2018-12-07 / 阅读(119) / 评论(0) 分类 地道英语在线听

First Flight Completed of Plane with No Moving Parts Engineers say they have carried out the first-ever flight of an electric airplane with no moving parts. Researchers at the Massachusetts Institute of Technology, or MIT, recently shared video of th

发表于:2018-12-14 / 阅读(100) / 评论(0) 分类 2018年VOA慢速英语(十一)月

When I meet difficulties, I will be very impatient and want to give up. Some day I realize that if I keep running away all the time, I will be a loser and make no difference. So I try to get over my fear and become patient. Now I no longer feel afrai

发表于:2019-01-03 / 阅读(134) / 评论(0) 分类 英语作文

211 、 木工工作台 woodworker'sbench 212 、 木工车床 woodturninglathe;woodworkinglathe 213 、 木工铅笔 carpenter'spencil 214 、 木工刨床 thicknessingandplanningmachine 215 、 木牙

发表于:2019-01-03 / 阅读(102) / 评论(0) 分类 英文名句短语

VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special English program, EXPLORATIONS. Today, we report on some of the early research in the development of rockets

发表于:2019-01-07 / 阅读(128) / 评论(0) 分类 Explorations

EXPLORATIONS - How Robert Goddard Helped Lead America Into Space By Voice of America Broadcast: Wednesday, April 20, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffit

发表于:2019-01-07 / 阅读(133) / 评论(0) 分类 Explorations

NASA Successfully Tests New Rocket Engine NASA最强火箭测试成功 火星之旅指日可待 The American space agency successfully tested a powerful new rocket engine this week in the desert of northern Utah. The rocket booster is meant to take a

发表于:2019-01-12 / 阅读(212) / 评论(0) 分类 2016年VOA慢速英语(七)月

A: Hello. I'm leaving. Here is my key. B: Just one second, sir, and I'll give you your receipt. Here you go. A: Thank you very much. B: Sir, did you enjoy your stay here? A: Well, most of my time here was pleasant. And New York itself is fantastic. B

发表于:2019-01-15 / 阅读(131) / 评论(0) 分类 英语情景对话-旅馆

Todd: Jonathan we are talking about conspiracy theories. What about the one where the sound? That when the rocket lands, they have actually audio of the rocket landing and you can't hear the rocket engine, and the rocket engine should be making a rea

发表于:2019-01-20 / 阅读(89) / 评论(0) 分类 原版英语对话1000个

The land-speed record 地面速度记录 How to build a 1,000mph car 怎样建造时速1000英里的汽车 Hybrid rocketry will be used to drive faster than ever before 混合火箭技术将用于更快地驱动车辆 May 5th 2011 | from the print ed

发表于:2019-01-26 / 阅读(99) / 评论(0) 分类 经济学人综合

18 物理学家、火箭专家戈达德罗伯特 DATE=3-21-01 TITLE=EXPLORATIONS #1944 - Robert Goddard BYLINE=Staff VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VO

发表于:2019-01-30 / 阅读(88) / 评论(0) 分类 文化聚焦

发表于:2019-02-03 / 阅读(121) / 评论(0) 分类 考研英语

Science and technology 科学技术 Reusable spacecraft 可重复使用的航天器 Jet-set rocket-man 乘喷气式火箭的乘客 A small British firm is working on a nifty new jet-rocket hybrid engine 英国一家小公司正在研发一款轻巧的新

发表于:2019-02-05 / 阅读(86) / 评论(0) 分类 经济学人科技系列

BEIJING, Apirl 1 (Xinhuanet) -- An Ariane rocket launch of two communications satellites was aborted Wednesday after a technical hitch at the scheduled moment of liftoff in French Guiana on Wednesday. According to Arianespace, the Ariane 5 rocket's V

发表于:2019-02-06 / 阅读(139) / 评论(0) 分类 英语新闻

It is better to be patient and get what you desire in the right time, than have high office thrust upon you when you are not ready. 语音讲解 单词发音 patient adj.有耐心的,能容忍的 desire n.欲望;要求 thrust vt.插;插入;推挤

发表于:2019-02-13 / 阅读(187) / 评论(0) 分类 跟着Gwen学英语之每日早读

BEIJING, Oct. 18 (Xinhuanet) -- NASA recently unveiled its new rocket design, named Space Launch System (SLS), according to media reports. The rocket will make its first unmanned flight in 2017, and the flight with astronauts aboard won't happen unti

发表于:2019-02-13 / 阅读(111) / 评论(0) 分类 英语新闻

On the morning of July 16, 1969, Neil and his two fellow Apollo 11 crewmen rose at 4:15 A.M. They had steak and eggs for breakfast, the same breakfast all astronauts had before a flight. The night before a special visitor had arrived for dinner to wi

发表于:2019-02-21 / 阅读(96) / 评论(0) 分类 名人认知系列 Who Was

Some hands now jumped into a boat alongside, and pushed a little off from the ship. 这时,有些人跳进了傍在船边的小艇,把它撑离了大船一点儿。 Ha! ha! cried Daggoo, all at once, from his now quiet, swinging perch overhead; 哈

发表于:2019-03-10 / 阅读(172) / 评论(0) 分类 白鲸记
学英语单词
-g
a certain amount of
Akseki
anti-drag wire
assemblers
at need
bernalillo
bialo
bistable trigger-action circuit
breakdown impedance
bringout seedling from storage
budgetary control system
caligo
carbunculations
cardialasthma
chronografic recorder
classification index
clearance fee
cone scan autotracking
datum(pl.data)
diaphragm vacuum gauge
didymiunm
Do you know any of those people
doxorubicine
dual-status tax year
Dumfries
dust-ignition-proof motor
eigensubspace
executive function
exoelectron dosemeter
fault occurred during seek
fault repairing
flutterest
Gaussian hypergeometric function
generalized t2 distribution
gentianopsis crinitas
glenconners
grained layer
gross fission products
grupes
halichoeres timorensis
high-visibilities
horo (bulgaria)
hymes
impassionately
internal fissure
Kaliningradskaya Oblast'
Karman Tsien for mula
Kitasatoa
l10n
lamp pendant
lanipendious
longmuir
man machine interface modeling
marryages
mica insert
micro-profilometer
mill ball
MVEG
neurodonometer
nitrogenous substance
occupational guidance
ocunterparty
oomold
overconcentrating
own-brands
penimepiciclina
phenylmercury succinate
polar radiation pattern
quick thinking
rapidly oscillating Ap star
rear-end
receipt account
redeclares
reelingly
scientific organization
sea damage
Senecio oryzetorum
settingvalue
siphonariid
slow-speed magnet action
sulfonamide acetylase
superstitous
tetralemma
Thailander
thickened sludge
Thomas Cranmer
total acceptance angle
trip standard
tropic low water inequality
tubular beam compass
uck
ulmaceaes
universal joint oil seal cap ring
us quarter
usr
veteran cars
virus bronchopneumonia
weakly podzolic soil
wild birds
wooden toy
working energy