碘苯基烷基胺

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(84) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 Scientific American(十一)月

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(66) / 评论(0) 分类 世界各地新闻集锦

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(117) / 评论(0) 分类 英语新闻
学英语单词
a second time
aided laying
all sales market
alphanumerical information
Antipatris
Antrodoco
aod
appellant
Arcila
artar root
attoparsec
audricurin
axis cap for conversion rod
batch quantity analysis
be a unit on
be soppy about
Be. No.
bismuthyl chloride
blewitt
bottom zone
caging design
chaos and confusion
Chaykovskiy Rayon
cigarette card
clevernesses
cloudy speckle
concessible
coraopolis
core beliefs
cotton-ball cloud
crystal report
dividing stationary tower crane
dropping auger conveyor scrapper (winch traction)
dutiable commodities
editic acid EDTA
eroded edge
expected pattern
family laridaes
family peramelidaes
flood-plain splay
flyability
Fourhorn
fowling pieces
frat boys
Fresno el Viejo
frightened off
function definition module
gas supply pipe
gasoline testing outfit
getups
hemibranch
hot brittle material
immerged
impensely
in pledge of good faith
inquiry logical terminal
intertubular tissue
isotope ratio tracer method
Janamejaya
Khunti
kissoffs
Leitneriaceae
lepidozona coreanica
lychees
meningocerebral
miner's coal ton
mistressing
monopterus albus
multiprocessor-independent user
Navy Secretary
noncoerced
Oariopathy
oecetis lacustris
omniparient
ostwald process
overpower indicator
priority of the latest used word
puffinesses
pump impeller
pure private goods
rose-colored starlings
shapeshifted
shelter revulsion
shunting engine kilometer
silver tetraiodomercurate
siphon bottles
sodium uranate
solid state circuit
speak truth to power
stonecat
symphyllous
take their pick of
tele-ring
triumfetta annua l.
truncicole
two thirds
uninsulated conductor
volcanic ash
war injury of bladder
Western Azerbaijan
yellow-stained cotton
zone of eclipse