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This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(八)月

The planet also began releasing oxygen, thanks to an ancient adoption of photosynthesis. A very ancestral primitive plant cell either engulfed or tried to digest or surrounded a cyanobaterium and instead of digesting it, it actually became an organ w

发表于:2019-01-23 / 阅读(143) / 评论(0) 分类 探索与发现2014年

 Superglue 强力胶 Male: Help!Help! Female:What's wrong? M: I was fixing my coffee cup with superglue .And I must have got some on my fingers but I scratch my forhead.And now my hand is stuck to my head. F: Superglue ? Cool! What makes supergl

发表于:2019-01-26 / 阅读(119) / 评论(0) 分类 英语听力文摘 English Digest

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(171) / 评论(0) 分类 阅读空间

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(143) / 评论(0) 分类 夏说英语新闻晨读
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achean
Actiol
alapaha r.
analog control equipment
analysis of parameters
articular rete
backslidings
bag-tube skirt
blast amount tester of cupola
borneolum
butylase
caigy
chambrer
ciliary crown
clingtest
Clupida longiceps
condensing lens
condensing temperature
construction of water conservancy works
copper(i) oxide
corrugated plastic sheet
Cottageville
Crazy Glue
Cyathostomum
cyris
danguo
dedicated service
derencephalic monster
diphenyl-mercury
direct marketing by house-to-house selling
do for a living
dock gate channel
double ripple
Douglas, Mt.
dry markets
eighty-percent
end sizing
Fargesia lincangensis
fault trees analysis
first demand for rates
foam mixer
format 0 xid
fritillaria meleagriss
functional electrical stimulator
Galicia
hangbirds
Herrnhuters
inject money
JN (jam nut)
Kruunupyy
lemon-thyme
lipoidal degeneration
liquor separation
magnesite flooring
mass transfer coefficient
metridia asymmetrica
moawad
monthly mean relative humidity
morphine-scopolamine anesthesia
motor vehicle weight tax
MRO (maintenance,repair and operating)
multi-orifice
neonatal line
noninspiring
Nutmeg-oil
old beans
otto loewis
overlapped wave
pavest
peculiar part
perlea
photoelectric measuring device
plunger adapter
potencies
private call library
put a price to something
radio teletype receiver
ragum (ragam)
Reckange
red-tinted
rock bucket
rutic acid
save point
saving your presence
screw traction
SearchMash
sociophobia
specktioneer
spring bracket
tearstain
thalamic pain
thallium monochtoride
thinging
turbine-inlet temperature
unrared
vaccine software
vaction
value for shareholders
vicarious hemoptysis
villaneuva
wood hydrolyzate yeast
zafar