(玻璃制品制做过程中的)打口工

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(98) / 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(82) / 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(85) / 评论(0) 分类 2018年NPR美国国家公共电台9月
学英语单词
acalypha longi-acuminata
addecimate
adenoma hidradenoides
administration route
Africanising
Alfredia cernua
alumina impregnated paper
American forge
antistatic fiber
arterio-venography
auditory percussion
baartman
barn yard
begin as
Biddulphioideae
bisimines
bistable polarization
Bombay Hook National Wildlife Refuge
bromacetic acid
Butterworth tank washing machine
Cassin
characteristic period
cheer sb up
choke-points
corkscrewy
cosynes
covering license
ctos
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Dornburg(Saale)
dress uniforms
dual-porosity model
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fatliquoring
five-ouncers
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frame control
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get to one's knees
hepatitis bs
Horatio Alger
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in a given jurisdiction
inertial field
inferior lingular bronchus
ion avalanche
life-was
line deflection system
lumholtz
make ... fast
Margaret Of Austria
Maritime Declaration of Heal
mature profile
melitin test
melt-through accident
Menticirrhus americanus
Mergüze
multiple wheel load
on my plate
orange-red
output stem travel clearance
oxygenates
palaeotaxodont
paraded
phase comparision system
processor microcode
pseudodystrophia
pulse propagation in optical fiber
purification by chromatography
radiotelephone alarmsignal generator
Raiwind
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right of translation
screw
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