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Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(156) / 评论(0) 分类 60秒科学

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(九)月

STEVE INSKEEP, HOST: Hurricane Florence, which is approaching the Carolinas, is another strong storm. Hurricanes are measured by wind. This one has had recorded speeds of up to 140 miles per hour. But whenever it makes landfall, the real danger may b

发表于:2019-01-17 / 阅读(128) / 评论(0) 分类 2018年NPR美国国家公共电台9月
学英语单词
adenylate-cyclase
aerial photograph
Ainsliaea caesia
analystical precision
apostolically
asterina orthodon
auto-alloploid
awake one from
back-heel
Baibeli
basic tier
be strong in
biomagnifications
blanck
Bowkān
bulb-shapeds
Cicero, Marcus Tullius
circular iris
clean interface
coboundary complex
commercial product
comparative structural estimate
complexification of a Lie algebra
cornish heaths
couthly
covering letter
cross-garnet
current commutation
d'iberville
decay oscillation
DFB laser
disentomb
displaceability
drag flow
drum coating
during cycle
Dylox
elastic-plastic strain
electro-optic deflector
emergement
endless chain conveyer
Epilobium sinense
fluidextractum hydrastis
guardian's allowance
handwritten information
hits the fan
hypophysioportal circulation
hypothetical baptism
immemorate
ion doping technique
irreducible curve
jejunoscope
kawamotoes
Kharakhi
l? chu
logic of relations
lymphatic temperament
marley floor
microdermabrasion
monopoly capitalist group
Mosaical rods
motor-cycling
order Polypodiales
papillo-adenocysto-carcinoma of breast
parial
parteth
perisitron
phglaxiology
philographers
pigment-producing bacteria
pimientos
plant growing quite tall
play along with sb's plot
pollution clean-up
property-information
put in mind
reactor irradiated
reticulate perforation
rotor bearing reservoir
scolothrips indicus
secondary yolk nuclei
seed identification
self-inclusive
service part
set speech
skullcap
sporation
standard normal Z transformation
subband filterbank
subquadrat
subsynchronous reluctance motor
Sudaneses
superficial degradation
thermal threshold
timothy berners-lee
traumatic fat necrosis
trepper
vaccinists
vertical collimation
view finder brightness
viscosity law
whitelions