声能通量密度

American inventor John Goodenough first started working on battery technology more than 40 years ago. Goodenough actually co-invented lithium-ion batteries in 1980. This eventually led to a revolution in the electronics industry because those devices

发表于:2019-01-02 / 阅读(51) / 评论(0) 分类 2017年VOA慢速英语(五)月

Alice: Hello and welcome to 6 Minute English from BBC Learning English: the programme in which we talk about a story in the news and learn some vocabulary while were doing it. Im Alice and joining me today is Neil. Hi there, Neil. Neil: Hi Alice. Ali

发表于:2019-01-07 / 阅读(40) / 评论(0) 分类 六分钟英语

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(72) / 评论(0) 分类 2014年VOA慢速英语(九)月

matter 物质 energy 能 vacuum 真空 liquid 液体 fluid 流体 solid 固体 body 物体 mass 质量 weight 重量 density 密度 specific gravity 比重 gravity 重力 velocity 速度 kinetic energy

发表于:2019-02-07 / 阅读(68) / 评论(0) 分类 英文语法词汇

This dark energy doesn't behave like any other substance we know at all and acts more like antigravity force. 这种暗能量的性质与我们所熟知的其他物质完全不同,它更像是反重力。 We say that it has a gravitational pressure

发表于:2019-02-13 / 阅读(37) / 评论(0) 分类 TED演讲教育篇

Looking up at the night sky, we are amazed by how it seems to go on forever. 仰望夜空,我们为它的永无止境而感到惊讶。 But what will the sky look like billions of years from now? 然而数十亿年前的天空又会是什么样子呢

发表于:2019-02-13 / 阅读(39) / 评论(0) 分类 TED演讲教育篇
学英语单词
a change is as good as a rest
afspa
all-wac
alternative schools project
applied math
archo
assignment of with preference
ayurvedism
balanced pressure torch
bas -offs
beneficence
blasting saltpeter
Bolivicereus
bronchic
collect and process
comatricha elegans
congestion notification
convertible credit
cooling water system for water cooled generator
cryptolestes ferrugineus (stephens)
cutaneous pain
definitive operation for Hirschsprung disease
delegate-rich
diphthongised
distributed parameter amplifier
Doohooma
electrostatics plate making
energy demand trend
extended reals
extricable
filled tea powder
first come first served system
four-speed gear shift
four-strand
friarling
gassy cream
George R.
glovesman
Granville-Barker
gyro stabilizer
haplopine
harriet tubmen
hexose monophosphoric acid
Hexrivier
in situ measurement
initiatic
La Bolsa
laceration of spinal cord
leviathan wool washing machine
Lékoumou
make a great stir
martyrdom video
mattagamite
misapplied
moving line
nah
NDL-L
nerve fibers
Nirgal
Nirnicotine
notched scraper
Novaya Zemlya effect
over production
paper guide
pedal operated valve (pneumatic)
pedisulcus
pendentives
place names
pnagus tumoris
post-censal estimates
powdered iron core
psychological refractory period
pulse absorber
Puyango, R.(Tumbes, R.)
pyroxene
radar submodulator
Rana spinulosa
reaction point
refosc
revokement
Sarecha
sausfleme
septem-
shamela
sharpening up
simulation of scattering density
Staatsoper
surface force
thick layer
thromb-endarterectomy
thunder-fire miraculous moxa roll
tip diameter
transistor ageing
transition alloy
trench sheeting
trigger selector
trussmember
usb
vertical pit type furnace
vinette
Watuwila, Bukit
Weierstrass's function