[机] 戊基.苯基甲酮, 己酰苯

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

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(38) / 评论(0) 分类 TED演讲国际问题篇

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

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
-trixes
abuko
adjacent feasible solution
adrenal cortical hypofunction
affronture
aldehyde indicator
Allium setifolium
ammonium bicarbonate
automatic synchronizing set
bailieboroughs
basic segment
blue-light source
bucaniids
burette float
Canad.
chipping tool
chromatoptometry
common pochard
common-battery central office
concentration equilibrium constant
conformal symmetry
conixes
convulsion of nature
corrosion cracking
crater lakes
cross frame
deoxyribonucleases
dynamics of rarefied gas
dysdiemorrhysis
endearers
entomological anatomy
entraoral anchorage
Esparron
existing legislation
feature writer
findo
flexible job
Gomphaceae
high-frequency discharge lamp
hot pressed sintering
hypomentalizing
Iijoki
immediate add
ink lay
interior transfer
jolt-squeezer stripper
Kainophobia
kcbp
leap in
leni-lenape
light-flux
liquid-solid equilibrium
low fermentation
lower level objective
macroseta
made tracks
magnetic disc hopper feeder
magnetic testing
mailing machine
maintenance automated logic diagram
matha
maximum tensional stress
meteorological reconnaissance
milliequivalents
moveout scan
mycid
nanosoma infantilis
natural language communication
nebulizes
oedema(edema)
out-strut
outward invoice
Pereiro de Aguiar
perimetrium
Peter Of Castelnau
piston rod oiler
possiblest
primary error
protection of boiler during shutdown period
punk jewelry
quadratic resolvent
quality of beam
reknits
Rensselaer County
residential quarters
risk level
riveted steel pipe
sans-culottide
satisfied compound
sawtooth wave generator
sea smoke
second self
signal coloration
strong base type ion exchanger
technical documentation library
tete-de-pont
theorem of topological degree
Toxiferine
verily
vilazodone
Waldenstrom
Zam-buks