四溴化铱{溴化铱(IV)}

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(232) / 评论(0) 分类 Scientific American(一)月

The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过

发表于:2018-12-28 / 阅读(191) / 评论(0) 分类 侏罗纪搏击俱乐部

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(219) / 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(255) / 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(231) / 评论(0) 分类 VOA2003(下)-环境与健康

US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I

发表于:2019-01-14 / 阅读(181) / 评论(0) 分类 VOA标准英语2015年(八月)

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(219) / 评论(0) 分类 农业与发展

A radioactive source which went missing four days ago has been found on Saturday evening. An Iridium 192 source, which was used to inspect a Sinopec industrial device in Nanjing by a testing company, had gone missing on Wednesday. Ten people in the s

发表于:2019-02-08 / 阅读(216) / 评论(0) 分类 CCTV9英语新闻2014年05月

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(247) / 评论(0) 分类 万物简史
学英语单词
A-lifers
accumulated depreciation-machinery
Acer tutcheri
acoustical propagation constant
alkali-proof paper
alvirah
amiota (phortica) subradiata
anisognathous
anorthosis
asbestos lung
asialoceruloplasmin
asialylated
barchan(e)
blister-packed
Brahman
charlie and the chocolate factory
cheiranthuss
cirrhiform
coadaptations
coccid
cribbage
data tester
Delang, Sungai
Diredawa
electrodynamic power factor meter
fluctuation noise level
french process
ground robin
guchong decoction
hanneles
Heimlich manoeuver
high density stock pump
historical data memory
historicisings
homokaryocyte
hydromodifications
impact metamorphic facies
incerate
income to net worth ratio
intrados
Iron Butterfly
isovalent hyperconjugation
jigoku
john hemminges
lamping
leading-reins
local clean equipment
malapandaram
meyerbeers
Motolon
movable-doh
MP4 player
Māndleshawar
nisodipine
NOT FASHIONABLE
observer-based
octadecatrienoic acid
operating origin
outskin
pam/fm/fm
pearl sinter
performance quality
periodical working
pillar supporting method
pot-kilp
potato granule
proliferative stage
pto driven manure crane
pulser circuit
pulvinulifera
random observing error
rapid damage assessment
ratio of contact
rayleigh surface wave
recorder strip
recuperating one's health
repair parts stock
repulsivenesses
scrambled-egg
shuttle apron conveyer
sinapinic acid
single throw crankshaft
spatial parameter variation
staphylotomes
summer range
supermutagen
Supportan
The spirit is willing but the body weak
THL
tran-retinene
transposable elements
turbulent transport coefficient
unfactual
Vaccinium serrulatum
voice amplifier
voltamperemeter
weight-lifts
with all faults
xiphosurous
yee
Ziziphus attopensis
zona tecta