[电] 磁北极

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发表于:2019-02-09 / 阅读(211) / 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(136) / 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(309) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
accrued tax
adhesion traction
aerial plug
age-limit system
alpinia zerumbets
amyloidoses
anal horns
angular repetency
angulator
apprentices
arrest warrants
back of foot
beeware
black mild steel fish bolt and nut
bottom of the ninth
box and whiskers plot
bulk cargo carrier
bundle somebody off
casual failure
Cedar Pass
ceroferary
closing of an account
Corydalis calcicola
crank
datum width
dentalneedle
development finance
deviance
dimlinear
distributed double-loop computer network
dolled
dufferdom
dumping margin
elected representatives
familyist
fiddledeedee
flat hot-rolled bar
four-card montes
Gahnia
gas turbine operation
glm
Gray's points
gynandromorphic
hartsock
helicobasidium
hemifusions
hyphomycosis destruens equi
in the fall
inegi
instancing models
Jeevesian
jezo spruce (picea jezoensis)
jumbo derrick
Koshurnikovo
landlord-tenant
leg and leg
Littrow
Mabanda
minority carrier emitter
missprision
monitoring procedure
mudo
necessarius
oil of chenopodium
parallel to the grain
passenger-rail
Pkulngri Pt.
pleiohippus
point-and-shoot camera
pollution survey
positive phase sequence current
postpatriarchal
power exponent
preferability condition
residue of evaporation
resplaid
ring us
Rockham
roller tapper
sandboys
sectorscan
si rf technology
slow time scales
soil residual acidity
specific deposit
steel-cut
sun-gleam
supernormal distribution
Tainia ruybarrettoi
Takajōya
thermoscopically
time-independent quantity
TKO.
turning jack
unknown station
vasobral solution
weed-eater
whole brother
wintled
wood waste briquetting
wool fiber
yecabuquts