可控推力火箭发动机

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(243) / 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(182) / 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(209) / 评论(0) 分类 2018年VOA慢速英语(十一)月

1.either, every, each有什么区别吗? 2.Scheme, schedule和sketch三者有什么区别? 3.Modify与convert有什么区别? 4.Manageable与controllable都可以表示 可控制的意思吗? 5.Chance 与 opportunity 可以互换吗? either, every, e

发表于:2018-12-28 / 阅读(170) / 评论(0) 分类 英语PK台

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(244) / 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(212) / 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(243) / 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(224) / 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(383) / 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(241) / 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(217) / 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(195) / 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(179) / 评论(0) 分类 文化聚焦

发表于:2019-02-03 / 阅读(230) / 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(172) / 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(236) / 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(290) / 评论(0) 分类 跟着Gwen学英语之每日早读

China's National Audit Office has released a new report on how budgets across China last year were managed. The report is suggesting the overall risk in China's local government debt remains controllable. To find and solve problems, the National Audi

发表于:2019-02-14 / 阅读(216) / 评论(0) 分类 2017CRI中国国际广播电台

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(187) / 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(284) / 评论(0) 分类 白鲸记
学英语单词
a graveyard cough
afternoon nap
antidevolutionist
aperture function
arm-to-arm vaccination
avalanche photodiode(apd)
Awjilah
bastard sawing
bean pork
belfair
black women
boranes
box switch
brightness transfer characteristic
broad band decoupling
bulk products
carrier machine
catalytic metal
clamshell fixture
coating antigen
common person
computer administrative record
contusion of larynx
current off upset allowance
damping machine
deflection under rated load
degree of influence
dentins
despiting
diederich
distant month
electroslag smelting casting
epifriedelin
evening grosbeak
financial accounting identities
first-round financing
forced-ventilation
fortified feed
Fos
francois rude
free exercise
fruitshop
galliardism
gorams
groady
Guangxi talc
heptaparallelohedra
hippocalcin
inspires
iodometrictitration
Jordão, R.
ligs
Lun'okite
macing
manogenin
minesweeping weapon
nonpayers
pedal dynamo
phlegm-fire disturbing heart
physicotheological
planning board
plano-concave
preheader
preventive maintenance policy
printemp
proportional plus reset action
Prospect Pt.
re-entry observation
rubbing paste
San Marco, Basilica di
sarofim
schup
secure computer network
segmental die
self instructed carry
send sth in
simteks
social insurance agency
social statistics
solutionism
spherical colony
stereoconvergences
stony bottom
suspended-growth system
sympathic
Tensilest
Ticomium
tropical rainforest climate
tumor of Cowper's gland
Tysmenytsya
tytonid
union security
Uraria fujianensis
wind-polished stone
winecellars
word-association
yai
yangonas
Yass
you're welcome
yucking
zimzum