地磁力

Hoverboards Ignore Gravity Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part

发表于:2018-12-16 / 阅读(51) / 评论(0) 分类 2014年VOA慢速英语(十二)月

change into把...变成... You can't change iron into gold. 你不能把铁变成金。 I want to change dollars into pounds. 我想把美元换成英镑。 A:Yesterday I bought a sweater from your store.and I'm afraid it's too small for.so I want to

发表于:2018-12-26 / 阅读(45) / 评论(0) 分类 跟艾米莉一起学口语

捕鱼量the volume of fishing 造纸业paper-making industry 木材储量timber reserves 森林覆盖面积forest-covering area inward investment 对内投资 entrepreneurship创业精神 pay tribute to 表示敬意 subsidies and grants津贴和拨款

发表于:2019-01-17 / 阅读(45) / 评论(0) 分类 英语口译

As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag

发表于:2019-01-22 / 阅读(57) / 评论(0) 分类 自然百科2011年

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(51) / 评论(0) 分类 自然百科2011年

Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by

发表于:2019-02-15 / 阅读(168) / 评论(0) 分类 自然百科2012年
学英语单词
-ci-
acetyl-salicylaldehyde
AJA, A.J.A.
anti-androgen
antitypes
apagallin
auxiliary variable
azulin
bhurra
blaisdell
boaties
boundary layer (bl)
Catt
cauchemar
cesium dithionate
concrete curing technology
consorce
cortex cinnamomi
cyberthief
cynolatry
design specifications
dispreferred
Duich, Loch
Dulino
duty tp pay taxes
echinite
esconduy
family Cardiidae
fatigue limit
fatphobic
feather-brain
film and paper condenser
float-type flow meter
focus of lens
frozen food paper
gas-compression cable
general release
go great guns
hand jack
heading sword
hereditary estate
holding flange
hyperbolical zone
Impatiens hengduanensis
inhaust
Kolliker's pit
Kunštat
lampadarii
lead compensation technique
lepidophobia
lgn
Ligusticum involucratum
Lynd R.
main power
maximum rated force under sinusoidal conditions
maximum tire speed
medical university
merise
metaphorist
microlepia obtusiloba
molecular nitrogen complex
mother-out-law
multi-colour flow diagram
navia
no load engine surge
nontypists
noodleness
nuclear air cleaning
numbering of land parcel
openinterval
oxomuramine
oxypaeoniflorin
P.M.E.
periodical ticket
photoelastometry
placenta praevia
Poison Creek
production of evidence
prompt note
public-access television
pystelade
qatana (katana )
radical scavenger
resiliometer
Rosignol
rustbelts
Sankt Leonhard
short-eared owls
Smooth Rock Falls
stability of river channel
standard wave
supplemental final cut
throwing mechanism
top disposal conveyer
transhybrid loss
trappiness
unsymmetrical alkene
ununbium
villiform
weeping tree broom
widening on curve