磷酸苯酯

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

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(59) / 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(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

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(四)月
学英语单词
Acer longipes
Adjarians
All eyes on me
aqueous two-phase extraction
aquiline
average lot quality
bakhara
Balloon reflector.
Bargusad
Becht's phenomenon
betadine
black streak
bolted pile
bracing piece
bulb diameter
Bulogites
Burnett R.
Buster Brown
cases of gross violation
ceratium dens
cinara pinea
coefficient of frequency
compound boiler
conflict behaviour
conormal
cornshuck
cotaneous ureterostomy
descaling spray
detent torque
diagonal matrix
dimethyl arsine trichloride
Eichstetten
epileptic seizures
euthanasist
exchangeable for same zone
fibresand
frame blanking amplifier
frequency modulation reticle
generic formal scalar type
glenmoriston
Gordoniaceae
guardian's right to custody of ward
header record format
hinged shoring altar
homoeomerous lichen
Hutchinson method
industrial capitalism
insufflation pneumonia
interface echo
Kapilin
Kopsia fruticosa
life event
lignoceric
limiting breaking capacity
lint free
long distance cruiser
low-pressure stage
Lucioperca
lysogenically
main object of expenditure
material resources
merchant mariner
millimeter wave satellite communication
misuse detection
naphthenic base crude oil
non corporeal
nozzle-for fertilizer application
overshieldings
palanquiningly
Piromyces
plume
positive catch
prestressing mechanism
preventible
primary sporogonium
profundulid
quaterdenary
Queanbeyan R.
rafraichissoir
Reed Point
Rhodes scholarship
rubstick
Sabre-tache
seasonal correction of mean sea-level
secklers
semidormancy
seros
set-tops
siderazotite (siderazot)
skoto-plankton
slow and sunken pulse
spontaneous regression
starting torque coefficient
system implementation and evaluation
typical product
uniform progressive tax
universal screw-wrench
upper-
valve fouling
variable speed planer
weighing tube
ziggi