羟辛可芬,羟苯喹酸

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(144) / 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(116) / 评论(0) 分类 Scientific American(三)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(90) / 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(87) / 评论(0) 分类 英语听力文摘 English Digest

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(135) / 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(134) / 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(132) / 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(259) / 评论(0) 分类 英语新闻
学英语单词
added edition
agreement on government procurement
allied line
aluminium alkoxide reduction
apassioned
arbils
aryl methyl ketone
asbesberge (asbestos mts.)
autocollimation spectrograph
back dividends
bdrm
Beroga
BET isotherm
bewall
Bhuvanagiri
bifin log-periodic antenna
brake shoe link
canning glass jar
cast iron struma
centrifugal ductile iron pipe
Cofibrale
compound well
contracept
de broglie law
design view
diopter adjustment
dormant company
eczematic
efficient resource utilization
elastic cone of larynx
electronic print reader
expense assets
eyelash
Falstaff, Sir John
fiber reinforced composite material
frighten the pants off
gombrowiczian
Greetham
grossamide
holographic plates
homoplastically
impact hardness tester
impact multiplier
industrial water pollution
internal energy balance
involuntary up-grade
isolated pitting
John Hancock Center
Klein reaction
Knema linifolia
knock-on spectrum
lame-duck
magnetic separation cleaning
manams
Mariotte's experiment
mediaweek
microbial morphology
midair collision
Miracast
mobile mount
Nosovo
one-square-mile
organic coast
organization planning
Outer Shoal
parenteral alimentation
parietal cell antibody
parts short list
petroselenic acid
pm high speed steel
posnjakite
private ethics
productivity level
public personnel system
pyrosequencers
quarter-lights
quasi weighted voting system
retrogressive erosion
Richard of York
rudyr
salprotoside
simplified expression
siron
Skórcz
sparks up
starkness
substrahend
sudden changes
tetradecanes
thermal-humidity test chamber
timerous
toadlet
transverse loading
trigpointing
turbine flow section
two-high universal mill
unstretch
untranscribed
vasyutin
Whitney's theorem
wrinklier
yard goods