紫外光检测器

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(57) / 评论(0) 分类 Scientific American(十二)月

HEALTH REPORT - Health: Looking for Skin CancerBy Brianna Blake Broadcast: Tue, 4 Jul 2006 16:00:00 UTC I'm Faith Lapidus with the VOA Special English Health Report. Tanning beds produce ultaviolet ra

发表于:2018-12-07 / 阅读(63) / 评论(0) 分类 2006年慢速英语(七)月

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(104) / 评论(0) 分类 (科普英语)Earth and Sky

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声,洪

发表于:2019-01-17 / 阅读(44) / 评论(0) 分类 托福英语

主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握

发表于:2019-01-22 / 阅读(58) / 评论(0) 分类 NPR边听边练

A new 'health' trend in Hong Kong sees women staring straight at the sun in the belief that it will replace their need for food and even improve their vision and sleep quality, reports Oriental Daily. 据《东方日报》报道,香港女性中兴起

发表于:2019-02-15 / 阅读(106) / 评论(0) 分类 阅读空间
学英语单词
accounting information system
actual aggregate breaking strength
aerobic cultivation
afterbangs
align boring
allelopathy among same plants
approach.
artificial accretion
autocoprophagy
bangser
beere
beta-turn
black payment
boobyish
bose einstein condensation
cable buoy
centropodus argenteus
Claus' blue
closely-spaced
coelophrys brevicaudata
combinate
constant-width fonts
cooler shrinkage
Craig's butter
cross the t's and dot the i's
cryptococcud laurentii
Cymbidium elegans
d.james
damage assessment
deproletarianize, deproletarize
dipterists
Distoma japonicum
DRFs
dry-scale disposal
dutch schultz
ego-organizations
Emmel process
Epsylone
extension repair
Falk-flexible coupling
fibrous weld
field-effect transister resistor
football pitches
foreign exchange administration
fovea inguinalis lateralis
free market economies
FSCM
gantry-crane
grazoprevir
hairstylings
hand scrape
higher plane curve
historical-mindednesses
Hlaingbwe
Hoplocarida
identification markers
ideophrenia
inchoative
infant industry argument
instrument calibration
instrumental case
intercostal vein
interosseous border
inwardbound
isogamy
jailbaits
junction tube
king of the sea
Koulikoro
lick someone's feet
liferaft light test
m. verticalis lingu?
mousetrap
multimode dispersion
Myriactis humilis
one-arms
open book examination
optimum recording current
Palinuro
perfluoroalkane oil
poumar yarn count system
practical work
public security organs
Pythagorist
queenlike
quinin salacetate
rebus sic stantibus
red sandstone
regular arm
res alienae
right congruence relations
run oneself out
take a pleasure in
tandem mass spectrometry
telinite
tomophobia
tow-paths
Trichlorobutanol
understaffs
unsleek
venomous
weld overlay cladding