四溴化二硼

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(243) / 评论(0) 分类 Scientific American(一)月

New Report Shares Secrets of Rare Blue Diamonds History The Hope Diamond is one of the worlds most famous jewels. It was in the possession of a series of people: kings, bankers, rich women and thieves, before its arrival 60 years ago at the Smithsoni

发表于:2019-01-03 / 阅读(257) / 评论(0) 分类 2018年VOA慢速英语(八)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(230) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(267) / 评论(0) 分类 农业与发展

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(241) / 评论(0) 分类 VOA2003(下)-环境与健康

AGRICULTURE REPORT - Cover Crops By Mario Ritter Broadcast: Tuesday, March 23, 2004 This is Steve Ember with the VOA Special English Agriculture Report. The idea to grow a crop that improves the land

发表于:2019-01-30 / 阅读(230) / 评论(0) 分类 农业与发展

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(256) / 评论(0) 分类 万物简史
学英语单词
'twou'd
accresce
agenital monster
air prilling
algebrist
alternating-current generating set
amino-polypeptidase
animalcula
antepileptical
arc-extinguishing
augur ill/well for
automobile clutch
autotargeted
b/j strain (dutch)
bearberries
bona notabilia
cathartid
command identifier
comprehensive user timesharing library
cord rock
cut in voltage
decoro
desertland
dilution techniques
door lamp
electric function generator
energy resolving rate of detector
error seeding
ester value
factory sanitation
ferrous ferricyanide
fluorinated polymer
foist one's company on someone
fosses
full arch
ganjas
gradient of keelblocks
green brickwork
handgrip stress test
Hemigraphis reptans
hemule
hepatic lipoma
high pressure baler
hyomandibular bone
independence day
input/output chart
intrinsic linewidth
jarbot
Jeronymites
johnhenry
kagnew
lenticulostriate tremor
lesser curvature(stomach)
line of rent
loom efficiency
luxor
manganese bath geometry
marble cake federalism
mastercraftsmen
metantimonic acid
micrococcus haematodes
more-traditional
multiple-threaded worm
nine out of ten
non-universities
Novoye Kashirovo
object table
obligatio ex contractu
ochro
oil dripping
Park-Glejser test
Pelargonium peltatum
pick up cylinder
pipeworks
pneunatic hoist
poppycock (england)
quasi bistable circuit
question of
radial plate
Remedios, Pta.
remote display protocol
runway control van
salthill
Sardinops
Sawa, Sungai
section purging
serve-yourself
siller
skew vault
soldering by dipping
statery
stenosis of coronary orifice
tgus
Tornajuelos
transparency of market
Triflusulfuron-methyl
unmawe
valveless dispensing apparatus
white-collar job
wholly - owned subsidiaries
wildwood
wolf herring