可变推力火箭发动机

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(188) / 评论(0) 分类 2013年ESL之商务英语

[0:0]urban城市的 [0:32.7921]urge urgent utility utilize鼓励,激励 紧急的,急迫的 功用,效用 利用 [1:11.2978]utmost vacant vacuum vague极度的,最大的 未被占用的,空着的 真空 含糊的,模糊的 [1:52.9962]vain valid vanish variable徒劳的,无效的 有效的,

发表于:2018-12-05 / 阅读(257) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

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(158) / 评论(0) 分类 英语沙龙2004全年合辑下

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(168) / 评论(0) 分类 2018年VOA慢速英语(十一)月

第一章 练习13:重读方式 Exercise 1-13 Variable Stress Exercise 1-13: Variable Stress Notice how the meaning of the following sentence changes each time we change the stress pattern. You should be starting to feel in control of your sentence

发表于:2018-12-27 / 阅读(212) / 评论(0) 分类 美式英语正音训练

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(190) / 评论(0) 分类 英语作文

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(192) / 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(190) / 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(309) / 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(197) / 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(174) / 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(155) / 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(140) / 评论(0) 分类 文化聚焦

发表于:2019-02-03 / 阅读(186) / 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(146) / 评论(0) 分类 经济学人科技系列

SYDNEY, Feb.4 (Xinhua) -- The Commonwealth Bank of Australia ( CBA) is the first of Australia's big four banks to pass on the central bank's interest rate cut to home loan customers. The Reserve Bank of Australia cut interest rates by 0.25 percent on

发表于:2019-02-05 / 阅读(187) / 评论(0) 分类 英语新闻

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(196) / 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(253) / 评论(0) 分类 跟着Gwen学英语之每日早读

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(158) / 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(230) / 评论(0) 分类 白鲸记
学英语单词
actigraphy
additive stress
alien duty
amenorrhea due to uterine lesion
analytic(al) projective geometry
anomalous verb
arab-arab
area border router
ARSOA
atmospheric pressure bed
auricular infection
back-court
batrachomyomachy
beam hole
bell trap
biased switch
bones of hand
bowl barrow
brightens
bursitis calcarea
charity school
cochain complex mapping
coincidence analyser analyzer
combined drying
corned beef hash
crystal-gazings
deep-sawing
Defense Advanced Research Projects Agency
demand loan department
diacstinic
diminutiveness
direct-injection moulding
disconsecrates
electronic compositor
endoskeletons
executive member
flag secretary
forest-management
gate controlled thyristor turn-on time
gonosaccus
gynecide
Hammondville
intermediate cable
isotope tracer
jean-robert
junk artist
legal jointures
load impact
load intensity
manufacturing subsystem
martinianus
metal supervision
microendoscope
morrhuic acid
myrmarachne laticorseleta
Māndālia
nastify
national insurance
nickel(ii) nitrate ammoniated
non-biting midge
obliquity of peivis
oden's sedimentation balance
on strap
oxytriphylline
palestine liberation organizations
paralogs
parsuadable
patapsco
pedio-
personal impression
Polygonum jucundum
Poroshiri-dake
preach to deaf ears
primogenitor
product branding
provincialate
region extraction
repaginated
rhamnite
rod mounting adapter
sacramento sturgeons
salmoners
Schistonota
semi-residential
Sikandarpur
silicon on insulator
six-ways
sleeve of tail stock
solar energy materials
spacehold
strong as a bull
superbikes
Svay Rieng, Khet
tall men
tangential longitudinal section
tchambulis
tornatore
trematode worms
tymbals
unhook
Yussuf
zibeline