苯基溶纤剂

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

LOURDES GARCIA-NAVARRO, HOST: After a momentous week in news, let's tune out of politics for just a moment and tune into The Puzzle. (SOUNDBITE OF MUSIC) GARCIA-NAVARRO: Will Shortz is the puzzle editor of The New York Times and WEEKEND EDITION's puz

发表于:2019-01-16 / 阅读(33) / 评论(0) 分类 2017年NPR美国国家公共电台1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(110) / 评论(0) 分类 英语新闻
学英语单词
Aaronites
Abelmoschus muliensis
absolute monopoly
akontite
amphibious research vessel
Andavias
anterior apophysis
antistine hydrochloride
Aspnäs
audibility meter
Bar Abir
batules
bix
bronchopulmonary lymph nodes
bugarach
Caes plant
calamiform
capoes
chain macromolecule
chirayta
chlorofucin
Cholovue
clastic anatomy
cocking-down
computerized telephone
cromn shaft
crown green
cute as a bug's ear
demulsibility test
drill pattern
eldest hand
environmental unit
exhibition gallery
FAX transmitter
flared entrance
flibbertigibbets
flow transducer
fluorine-silica fiber
folded plate construction
gabeller
ground reconnaissance vehicle
hauling firm
Hemsleya dolichocarpa
Homorodu Mare
hypercyanotic
hyperflagellated
instrumentalis
intervised
Kamennaya
leakage water system
life way
Ligularia transversifolia
magneto-mechanical factor
manniparous
master cylinder body
memorialized
mixview
moss jasper
multiple gas analyzer
non-taster
nonachiever
noneducated
numerical word
open source movement
oriel window
pit bull
pivottable wizard
pneumeter
pobo
quick-response excitation
rhizopus salebrosus
rosenscheldiella orbis
rotate in office
rowan
Rumyantsevo
sacvan
selenium layer
ship's path monitor
sintal-li (sintan-ni)
Sirotskiy
skyline winch
Sound Mind
sourish
spectrum colour
spherolitic structure
spigot of the classifier
squalid loaf
square stroke engine
stop loop
stricture of salivary ducts
sulfonium hydroxide
surprizes
suspended histogram
syphilitic uveitis
tcam application program
too-hasty
troubleshoots
tungstic trioxide
unreasonable rules and regulation
utility mobile station
waselkov
yocto-meters