丁苯基联苯基噁唑

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

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(36) / 评论(0) 分类 初学者听力文摘精选

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(120) / 评论(0) 分类 英语新闻
学英语单词
accentual phoneme
amospheric pollutant
apportioning depreciation
armoured bulkhead
army-ant
autolytic deterioration
automatic batching equipment
average of samples
azido-Q
baby colic
banqueter
basis of quotation
bay port
berberis polyantha hemsl.
berral
Boltzmann-saha theory
bouillie
broshe
command line interface
correction from normal section to geodesic
cultivation of good strains of seeds
direct fixation rail fastener - anchorage assembl
dividend-received exemption method
double-wave detection
drop zones
ego-free
electroaesthesiometer
electrophysiology of nervous system
estimands
eupelmus tachardiae
european-origin
eynes
family ceratopogonidaes
feather edge chatine piece
flipples
foehn pause
forest horticulture
free-piston compressor
fuel life
gas-phases
genetics of spermatozoon
graniteware
Guglielmo's disease
Gössweinstein
heavy ripper
Hebr.
high-tension testing apparatus
hob arbor carriage
Hommerts
hypochnoid
hypocochoana
instantaneous overl oad
intrapulmonary pressure
janny
kmarts
lamb in the middle of the night
Langerhans'g's
laser heat treatment equipment
lateral pin
leading edges
legal beagle
letter of insurance
line of wave crests
linimented
livestock trading tax
local console
logandale
magnesiumreduction
maimedly
maximum daily consumption
maximum speedup hierarchy
Meleney's burrowing lesion
merge-joint
middling regrinding circuit
mind boggler
misprising
moon over somebody
mycelium mat
narrow scan
neutron-multiplier materials
normal magnetization curve
pars dorsalis
penaeus merguiensis
Podozamites
quarter of a mast
right of reproduction
Sarykol Range
school club
simple closed kinematic chain
Sorghum Oil
ST_food_not-pleasant-to-eat-or-drink
staff exchanger
Strančice
streetball
subtractive
Sungaiselan
Tabanus misen Aust.
tetrafluoropropanol
Torino di Sangro Marino
vacancy disc
viscoelasticity theory
white dwarf