菲涅耳棱镜

STEVE INSKEEP, HOST: Just about every American adult has heard the names Roe and Wade. Roe v. Wade was the 1973 Supreme Court decision legalizing abortion in the United States. Not so many people know about the real people involved, and now a new pla

发表于:2018-12-17 / 阅读(197) / 评论(0) 分类 2017年NPR美国国家公共电台1月

The Government Communications Security Bureau (GCSB) is our spy organisation. At the moment, it can only legally spy on foreigners in New Zealand. However this organisation made a mistake spying on Kim Dotcom because he is a permanent resident. Also,

发表于:2018-12-31 / 阅读(187) / 评论(0) 分类 新西兰英语

Spectrum 光谱 Do you know what a spectrum is? 你知道光谱是什么吗? It is a series of colored lights. 它是复色光。 How can we see a spectrum? 我们怎么能看到光谱? When you see sunlight through a prism, you may see a rainbow

发表于:2019-01-10 / 阅读(208) / 评论(0) 分类 与美国小学生一起学英文第11册

Prisms 棱镜 Why can we see rainbows after rain? 我们雨后为什么能看到彩虹? We can see rainbows after rain because droplets of moisture in the air work like a big prism. 这是因为空气中的水滴就像一个大棱镜。 So what is

发表于:2019-01-10 / 阅读(181) / 评论(0) 分类 与美国小学生一起学英文第10册

歌曲:Katy Perry-Roar Roar, the first cut off of Katy Perry's upcoming album Prism, hit the airwaves last week and went right to the top of the Billboard charts (for digital songs). One person who is particularly fond of the song (besides everyone

发表于:2019-01-10 / 阅读(240) / 评论(0) 分类 英语娱乐八卦

The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧,小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能帮助寻找其他太阳系的生命

发表于:2019-02-16 / 阅读(215) / 评论(0) 分类 经济学人科技系列

Science and technology. 科技。 The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧,小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能

发表于:2019-02-18 / 阅读(151) / 评论(0) 分类 经济学人综合
学英语单词
-cede
academic planning
accumulation of floating ice
advance against goods
airflow counter
appeal procedure
ar-razi
arc-welding plant
avant-gardisms
be nas
bivariate discrete distribution
catalog utility
channel electron multiplication
cheatest
chillicothe
class mammalias
complex drainage
compound target
countermine operation
crocco type nozzle
crown diameter measurement in aerial photo
decomposition query algorithm
dejah
density test
direction of loop
drift region
Dyke, River
earthquakes
Einstein-de Sitter cosmological model
engine closed cycle
exchange central office
exercise end time
fast buck
finger-licking
get beyond one's depth
gradient geothermal tepmerature
Halle-Booienhoven
have to do something
high-grade pure cotton cloth loom
high-sodium diet
hop into
hyplastron
ichthyismus
impulsive force
individual register system
information system for electrical safety
interdeals
interfrontal bristles
irrevocable control regime
Khānsar
Kyzyl-Mazhalyk
larruping
loading trough
long staple glass fiber
Lurgimetall alloy
master and servant
meletus
Mensae
mody
Muncusun
nap time
Nash hytor pump
neuroimmunologic
normally energized track circuit
odorously
online stalker
orris-root
parallel-gear drive
philanthropism
pick-and-place unit
pine camphor oil
preflight medical analysis
pushing force
put something out
quadroxalate
range channel
recent times
River Thames
sea voyage
senkakus
solid state hybrid drive
spurious echo
start command
start-up sequence
statement of acceptance
straight-slope-distance rule
supplemental unemployment benefit payments
swing state
tangential close ray tracing
tejus
thalassotherapist
trade
tumor of broad ligament
under shorts
unpleated
Valerianella
vee thread
warm sector
were only here today
word processing equipment with nonimpact printer
yelton