对羟基苯甲酸

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(167) / 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(141) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(153) / 评论(0) 分类 Scientific American(一)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(123) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(113) / 评论(0) 分类 英语听力文摘 English Digest

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(139) / 评论(0) 分类 医务英语

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(160) / 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(163) / 评论(0) 分类 Scientific American(十一)月

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(176) / 评论(0) 分类 VOA标准英语2012年(三月)

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(135) / 评论(0) 分类 英语新闻

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(299) / 评论(0) 分类 英语新闻
学英语单词
artuss
automatic operations panel
Bacterium coli anindolicum
barrier crash
bimuscular
bumpity
by a nose
carbon audit
cartilaginous joints
CHFV
circuit re-entrancy
colony forming unit-spleen
consumption related import
cordless plug
covins
current rectifier
curta
Dafina
dermacentor variabiliss
destabilizing force
double resonance experiment
edessas
emancipist
entoptic phenomenon
environmental wind
equal-area net
equip sb for a trip
Errors and Omissions of Agents
escrow L/C
exciplex fluorescence
external wall of cochlear duct
failure to use mark
fertile material
fetch logic
folkiness
Fonteyn, Dame Margot
funeral parlor
genus Stegosaurus
granger roads
gurbirs
hectogram
hematic tonic
hexamid
homemade goods
hydrophilite
illecebrum verticullatums
IRQC
karenins
lap mixing
lateral corrasion
lean-burn system
line oiler
make a fool of someone
mining geodesy
model reference adaptive
monotone decreasing set function
mosing
multiple glide
multiplex atactica neuritis
nanomechanism
non-reflexes
non-school days
nonlinear feedback device
nonspace
nowed forming
orbitozygomatic
orlen
ozone sicknesses
paramedian
parts tag
pasturable
penniveined
peristaltic sound
physical handicaps
planar cam
Planck's theory
Poa alta
point-to-point distance
polyrhachis lamellidens
quadrature modulation
radiofrequencies
random coiling polymer
retropulsive
Ruthsburg
salting-out electrolyte
shunting indicator circuit
spectrum characteristic
spraying plat
square chart
stellenbosched
Taiwu Towunship
tappet guide
thermal expansion test
time-lag device
transport rope
tries-on
tympyn
understatement
undreaded
vacuum-assist pouring
vltavite (moldavite)