南地磁极

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发表于:2019-02-09 / 阅读(298) / 评论(0) 分类 加州语文教材California Treasures G5

By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw

发表于:2019-02-23 / 阅读(181) / 评论(0) 分类 英语时差8,16

Magnetic North Pole Moving Faster Than Scientists Expected Earths north magnetic pole is moving, researchers say. It has moved so much, so quickly that a group of scientists hurried to change a model that helps guide shipping, airplanes and submarine

发表于:2019-03-12 / 阅读(365) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
a Jamie
accordance
acquire knowledge
Annual Return Rules
bayton
bearing marker control
benzilonium bromide
besandaled
broad crested weir
byssal gape
candle-snuff
chills and fevers
chime barrel
christodoulos
ciderish
citation of statute
clange
classifier
closure of rift
coarse drill
comigrating
concealed reflex
cone feeder
defrenne
differential refraction detector
excess reinsurance
export standard
fall into an ambush
femorohumeral index
Flechsig's tract
floating school
forward elevator pawl
freeze drying
galeano
gallbladder(GB)
generic software
Giacomuzzo
gjirokastra
graphical comparison
guide flange
gyrotron maser
haulin
hepatobiliary
hereditary epidermolysis bullosa
high molecular alcohol
high-rank graywacke
homogeneous polynomial
hot pneumatic type portable sprayer
hot-jacket
house organ
iconscope
independent self-concept
inhalation toxicology
johnnys
key-seat
La Alcarria
ladening
lateral nucleus of mammillary body
lie near sb's heart
linguaphones
liver parenchymal
loudspeakered
maintenance men
market analysis
Mnesithea mollicoma
Nam Sang Wai
navigational intelligence
nir yizhaq
oberea shimomurai
Or.
paper maker
patent green
piecewise regular function
power of life and death
PPKD
prosubiculum
quick cutting
recolorizations
Reenstierma antiserum
refuse disposal service
residential cells
ricinic
right heart failure
Roches
screw height control
self-condense
sight graticule
Sixto-Clementine
solvency determination
soul pain
Sphaeranthus senegalensis
stall-dive
subjectness
supernumerariness
technofascism
temporary swap file
throw something into relief
time down
valvular endocarditis
working regime of the maximum jet velocity
yellow elastic fiber
zoning intensity