古地磁北极

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发表于:2019-02-09 / 阅读(236) / 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(155) / 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(329) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
3-hydroxy-2-phenylpropionic acid
alvish
Araiu
automatic service requirement
bedee
bibliographic service center
biomedical radio transmitters
blind faith
Ca-Al rich inclusion
campanas
cheap copy
chloronaphthalene
cochlear reccess
coelectrons
coherent, phase
cu.
cushendun
Dangyangyu ware
dark brown soybean
deinstrumentalized
Dembi
demonologically
depilous
diphenylenimine
dual-fuels
ductuluss
duty bound to pay taxes
employment and suitability test
expulsion type lighting arrester
eye-vesicle
farmstays
Fortim
fracture of zygomatic bone
free state life time
Frunze
genus Sebastiana
geometric plane solid
Geum aleppicum
goth up
ground water source
hurgrum
impenitent
importunately
inform on sb
inner minicry
instruction manuals
jelly filling
jig-saw puzzle of continents
kaiserslauten
Keyserling, Hermann Alexander
l'egypte
level-triggered interrupt
Lindtner
linvs
lymphangia
lymphatic valve
magnetoelectric ignition
malebouche
membrane electric current
military model
mimber
miscible fluid drive
mobile moisture
mongcorn
mycosymbionts
namiks
narrow-leaved plantains
news-times
non-executing
ocracy
p.h
palaeokarstic
peak plant
phenylacetic acid
phosphoantibody
Phyllostachys glabrata
policyproof of interest
provision term
prudential rules
pump effective power
Root's
rosharon
San Felipe, Cayos de
Seriola dorsalis
serpigo
shift variables
simply supported beam bridge
stand-alone capability
stevenss
storm valve
Sud, Prov.du
Sulia
taipoxin
tensings
termage
tetravaccine
the final solution
top guide bar
travelling centering
tree-structure network
ypll
yttratantalite