三元乙丙橡胶

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(75) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 Scientific American(四)月

This is the VOA Special English Agriculture Report. Companion planting is the idea that when some crops are planted together, they help each other grow. These compatible plants generally have similar needs for nutrients, soil and moisture. Advice fo

发表于:2019-01-11 / 阅读(66) / 评论(0) 分类 VOA慢速英语2009年(八)月

Agriculture Report - Friends With Benefits, in the Plant World 农业报道 - 植物世界的互惠互利 From VOA Learning English, This is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Companion plantin

发表于:2019-01-12 / 阅读(63) / 评论(0) 分类 2013年VOA慢速英语(三)月
学英语单词
accumulated interest
addend-partial product register
aqueous cutting fluid
beam loading impedance
beatle-cut
Beibu
biphenylyloxy
bromatoxism
Bromofume
capitulum stapedis
Caralis
Catharism
chavrusa
closing fold
composite motion of a particle
Contagalo
coupling element
Craibiodendron
crucible base block
curium recovery facility
deductions from gross payroll
deferred judgment
diethoxin
divorsion
doublepresure ring
draughs
electro-metallurgical process
erythema arthriticum epidemicum
extratidal
ferorelli
Florence County
frequens ixodes
furfural refining process
gonmer
grassture
green smut
guide pillars
gullion
harrow mark
health examination
high efficient plant radiation
Homberg's sedative salt
huntedly
I-beam web
incline molding
indigenous tradition
isoimpinellin
Jenacaine
joint offer
kils
learning from instruction
leonhardite (partially dehydrated laumontite)
long duration test
lypothmia
macho-men
McIntyre B.
microbiology of antagonism
monosyllabled
Mǎgurele
Narsingdi
navigation weir
non-livings
nonsticking
normal electrode configuration
notings
oily flavo(u)r
pattern plaster
PCOD
phloem mother cell
polarized s-wave
polycrotic pulse
probability sample
pyrrhopeplus posthumus
pythmen
read control register
record range
reference books
rights-holders
Santa Muerte
scabre
sea-tree
seismic drilling rig
shock pad
short-range wireless
soljacic
spotted sore-throat
spread recorder
stained mica
starting spring
stealth bag
Stink Face
Strait of Malacca
take-up torque
telephone line
ucsb
unclearer
unconveyable
unimmunized
unrelations
water-vole
whitecapped
writing assignments