马赫数效应

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(122) / 评论(0) 分类 英语沙龙2004全年合辑下

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(141) / 评论(0) 分类 VOA2003(下)-环境与健康

That's an unnatural act for a rocket. 这对于火箭来说,不是一种自然的行为。 The third stage has a camera. 第三次发射,火箭上有一个摄像机。 We call it rocketcam. 我们称之为火箭摄像机。 And it's pointed at th

发表于:2018-12-18 / 阅读(92) / 评论(0) 分类 TED演讲科技篇

40 years later, aero experts coined the term transonic. 40年后空气动力学专家创造了跨音速这个术语。 They debated, should it have one S or two? 他们争论这个术语应该用一个S,还是两个S? You see, they were having trou

发表于:2018-12-18 / 阅读(110) / 评论(0) 分类 TED演讲科技篇

Mother Machree There's a spot in my heart which no colleen may own; There's a depth in my soul never sounded or known; There's a place in my memory my life that you fill; No other can take it no one e

发表于:2018-12-30 / 阅读(156) / 评论(0) 分类 英语沙龙2004全年合辑上

Mother Machree 慈母颂 Theres a spot in my heart which no colleen may own; Theres a depth in my soul never sounded or known; 在我心中有那么一隅, 任何少女也不能占据。 它埋在我灵魂的深处, 我从不声张从不表露。

发表于:2019-01-02 / 阅读(174) / 评论(0) 分类 晨读英语美文60篇

Four Young People Who Make the World Better 四个年轻人致力于让世界更美好 What can technology do to make your world better? Four young people are starting new businesses to answer that question. Mateusz Mach Eighteen-year-old Mateusz Mac

发表于:2019-01-12 / 阅读(145) / 评论(0) 分类 2016年VOA慢速英语(三)月

Young Technology Expert Works to Stop Car Thefts Kenya is East Africas largest economy. Its capital Nairobi is growing quickly. But so is the citys crime rate -- the Nairobi Metropolitan Crime Observatory says thieves steal an average of 10 cars each

发表于:2019-01-12 / 阅读(137) / 评论(0) 分类 2014年VOA慢速英语(十一)月

MICHEL MARTIN, HOST: It's no secret that corruption is widespread in Kenya. But recently, the conversation about it got real when a bus driver confronted the police and the president with a story of bribery on national television. NPR's Eyder Peralta

发表于:2019-01-16 / 阅读(123) / 评论(0) 分类 2017年NPR美国国家公共电台2月

STEVE INSKEEP, HOST: The United States Supreme Court is busy this week with a ninth justice, Neil Gorsuch, on the bench. Today, the court hears arguments in a Missouri case with the potential to open state coffers for aid to parochial schools. Like M

发表于:2019-01-17 / 阅读(157) / 评论(0) 分类 2017年NPR美国国家公共电台4月

雅思大作文中有一类题目是因果关系类,具体包括三小类:cause and effect、cause and solution、problem and solution。这三小类问题也可以穿起来,即针对某个topic的causeeffect (即problem) solution。 无论哪种

发表于:2019-01-18 / 阅读(153) / 评论(0) 分类 雅思英语

2010年3月8日是三八妇女节,给自己的母亲或者女性朋友送上一首英语诗歌-《慈母颂》作为祝福,给她们一个意外的惊喜和慰问吧。为大家收集了几首 英语诗歌祝福语,祝福全天下的女性朋友们

发表于:2019-01-20 / 阅读(131) / 评论(0) 分类 实用英语

Expedite climb to FL190. 21.加速上升到高度190。 Climb to FL280 expedite until passing FL180. 22.上升到高度280,快速通过高度180。 Unable to expedite climb due weight. 23.由于重量原因不能加速上升。 Descending immediate

发表于:2019-01-31 / 阅读(198) / 评论(0) 分类 飞行员英语900句

Before we take this giant leap, we need to be able to carry everything needed for a three-year -round trip with us. This is a much larger effort than getting to the moon. Its the Apollo mission on steroids. At this point we know at least as much as t

发表于:2019-02-03 / 阅读(126) / 评论(0) 分类 自然百科2012年

A colleague from the financial world recently announced on Facebook that he had retired to the woodsy north-east of the US and that he was looking forward to spending his days fishing and hiking in a sylvan landscape far from Wall Street. 一位金融圈

发表于:2019-02-05 / 阅读(138) / 评论(0) 分类 阅读空间

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(140) / 评论(0) 分类 英语每日一词

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(197) / 评论(0) 分类 英语单词荟萃

GWEN IFILL: After serving in Iraq and Afghanistan, many veterans face an uphill battle finding work in civilian life. There's been an increase in efforts to help ease their transition, but one segment of the veteran population is often overlooked. Sp

发表于:2019-02-17 / 阅读(245) / 评论(0) 分类 PBS访谈社会系列

The secret of numbers A: I noticed that some people like to use 001 for their personalized licence plates, such as BTV 001 and CRC 001. why does everybody like 001? B: because, in Chinese, the number one represents the fist or the most original. Its

发表于:2019-02-25 / 阅读(150) / 评论(0) 分类 英语畅谈中国文化

At least the names for the two main possible culprits are entertaining: they are said to be either WIMPs (for Weakly Interacting Massive Particles, which is to say specks of invisible matter left over from the Big Bang) or MACHOs (for MAssive Compact

发表于:2019-02-25 / 阅读(144) / 评论(0) 分类 万物简史
学英语单词
aeschynite-(Y)
alanosine
allocation of fund
Armenina
astern attack
axis oculi
Blinking Billy Pt.
bone collar
cardiopathogen
casula
certificate of entrustment
Cohengua, R.
cynanthropy
desynchronising
dilauryl thiodipropionate
Diphergan
dormant scrap
double shaft drive
dowlas
Ehretia corylifolia
emulsionize
entertainment venues
estimated surplus
externally fired hot blast heater
FDDI II
file storage station
fistulatomy
fixed point theorem for measure-preserving mapping
form holder
fourth-generation language
glass-bottoms
government-run factery
Greycourt
homochronous
Hopkinson yoke
Hunter whiteness
impulsive personality disorder
in one ear and out the other
incipiently
ingressance
international tort
internationally-recognized
interrupt request block
intrabrand
L.C. network
laminar drag
leyke
line mode switching
machine tow
mechanized output
millage tax
misrecords
most economic observing
non-player characters
oligometra serripinna
Pacific Mail Steamship Company
partial differentiation equation
pectus alare
Phip.
pillar switch
Ports And Waterways Safety Act
potential national income
pre-structureds
preparation of sample
Punta Delgada
radiocolloid
refrigerating effect per shaft power
rhizophoraceous
rope clutch
Rupicola
safekeep
segmented encoding
shadow resource
shrinkingon
single stroke multivibrator
snap.com
spiral tube
spun delustering
standard model
structuring technique
supraversion
Sustagen
syrk
teaching-learning
the blue god
theory of social interests
tobacco moths
transverse upper triangular
trial target
triazine ring
tripping lines
tubularly
tunnel gate
unit power mounting
uraecha angusta
V-type thread
variable spread
velke mezirici
viallis
Wettaburg
wheel slide dump (control) valve