音标:[,tɛtrə,klɔro'ɛθə,lin; ,tɛtrə,kloro'ɛθə,lin] ;
n. [有化] 四氯乙烯;全氯乙烯

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

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(358) / 评论(0) 分类 2017年VOA慢速英语(六)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(60) / 评论(0) 分类 医务英语

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(116) / 评论(0) 分类 英语新闻

Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele

发表于:2019-02-08 / 阅读(87) / 评论(0) 分类 VOA标准英语2010年(一月)

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(70) / 评论(0) 分类 万物简史
学英语单词
acid base metabolism
address array
adherent point
Alboin
all the night through
bizant
bleecker
bore
break-in invert
Bromomethyl-7-methoxycoumain
bucerias (buserias)
Calvinized
chemoprotectant
contingency type distribution
crab-bolt
Cyperus rotundus
delayed sowing
delicate fruit
diagonal mapping
dimitris
diptacus ipomoeae
directional nozzle
disease-modifying
distributor barrel
drum-type indicater
Effigy Mounds National Monument
electrochemical type gas detector
estimas
ex-refinery price
ferula sp.
flooded gas reservoir
flush box
fossae lateralis
gas-tight shielded enclosure
goings-out
grow light
gunite coating
Gwada
head lamp with antivibration device
high sensitivity analyzer
HWID
hyonatremia
in line assembly
indirect luminaire
intermixes
lateral inflow
leaching precipitation method
Legurame
liquid-phase nitration
Lolitaish
M-2,M2
married name
mayerson
medical expenses
metabooks
muqarnas
mutual currency holding
myelogeny
night differential
nondegenerate state
nuptial
old girls
open pit transportation
open-cycle controller
ordered probability model
pole-face shoe
post a letter
powder dip coating process
prefrontal lobe
processor chip
proofplane
public asymmetric key
purple chinese houses
race-mixing
reauthorisation
recovery procedure
renin-angiotensin-aldosterones
rla
roubideaux
rugose leaf
sample technique
semidilapidation
SF
shutin
single-head wire stitcher
sodium metabisulfite
Solar Capital of the World
solubilizes
statant
stator tester
suppression violence
tantalian cassiterite
theoretical point of frog
tidy tips
tough toughness
toy with the idea
turn-of-the-century
typographist
variola confluens
visna