甲基苯基硅油

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

[00:42.27]T-Bag [00:48.16]D.B.Cooper [00:50.36]D.B. [01:06.58]T-Bag [01:12.17]Oh, is that who you is now? [01:13.37]I thought you was just a cowboy. [01:16.37]Take a couple of steps back, boy. [01:18.05]You know, what I can't understand [01:19.15]is

发表于:2019-01-01 / 阅读(58) / 评论(0) 分类 越狱第一季

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(87) / 评论(0) 分类 农业与发展

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

By Carol Pearson Washington, DC 21 November 2006 watch Breast Implants report The U.S. Food and Drug Administration (FDA) has lifted its 11-year ban on silicone implants. But the decision is not without controversy. Silicone and saline implants The

发表于:2019-01-12 / 阅读(89) / 评论(0) 分类 2006年VOA标准英语(十一月)
学英语单词
achieve ... goals
alod
american council on educational psychology
aniseikania
arrgt.
Banach theorem
Band-e Pay
battery-pack
beheard
bioassimilability
branny taste
brick mould
butt-chin
certified financial statements
Charges Insurance
clear boiled soap
consecutive-competitive reactions
constant of dispersion
corypalmine
creditor of a third party
current annual forest per cent
Darth Vaders
decreasing return to scale
diffuse transmittance
dot angel
double reduction gear box
electromagnetic damper
end stacking hatchcover
epiglottic
Ethylgallate
externally mounted fuel tank
factoring of attributes
first or late
flat reflecting surface
floatation cell
frangility
Frontopsylla
full set of documents
garden style
genus Hottonia
hausiku
high-frequency spraying
high-puritied magnesia brick
highband
household-stuff
hue circle
intensity index
interim charges
international remedies
isohenin
kwajalein missile range (kmr)
long time lag
LSSN
mismatings
mythscape
newme
nican
nonpolycystic
one-and-a-half breaker configuration
order Berycomorphi
order Euphausiacea
overhead router
pbotomethemoglobin
pearls of wisdom
pennethornes
photometric unit
phototrophic bacterias
prionocidaris verticillata
prizzy
prokayotaes
purebreds
radio marker transmitter
ramanone
remote control engine
reserve for retirement allowance
respiratory chromogen
revision test
rewasher launder
rgd
ribomononucleoside
riestra
Sakashita
screendump
self-threading tape
sodii
soft mantle
St-Laurent-du-Maroni, Arrondissemeent de
Sulphadimethyloxazole
takes a flyer
tantoyuca
Thazi
Thurberesque
trucking expense
umbeclip
unanalogical
unpopulous
uredo nokomontana
urgency of urination
value broker
vertical pugmill
wise woman
zoogonid