[矿业] 纯成井速度

By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a galaxy nearby which is called NGC 1068, an active galaxy, w

发表于:2018-12-07 / 阅读(330) / 评论(0) 分类 超大质量黑洞

Those stars don't feel the black hole. They feel the rest of the stars in the galaxy. They don't know or care that the black hole is there. If you took the black hole away from the galaxy, they would

发表于:2019-01-02 / 阅读(286) / 评论(0) 分类 超大质量黑洞

音乐咖啡厅:Rihanna再度牵手Justin Timberlake(Hole In My Head) Artist:Rihanna Song:Hole In My Head [00:06.66]You got a hole in your head [00:09.79]You got a hole in your head girl [00:13.10]You got a hole in your head [00:16.19]You got a h

发表于:2019-02-08 / 阅读(125) / 评论(0) 分类 音乐咖啡厅

There was once a farmer who lived near a road. It was not a busy road, but from time to time, cars passed the farm. Near the farm gate, there was a large hole in the road. This hole was always full of water, and the drivers of the cars could not see

发表于:2019-02-08 / 阅读(57) / 评论(0) 分类 趣味英语

Down the Rabbit Hole Alice and her big sister were sitting on the grass. Her sister was reading a book, but Alice had nothing to read. She looked at her sister's book again. There were no pictures in it. What good is a book without pictures? She wond

发表于:2019-02-08 / 阅读(80) / 评论(0) 分类 趣味英语

Did you ever dream of digging a hole so deep it came out the other side of the earth? Let's play that game again, using a little physics. First we have to imagine that our tunnel is lined with super-heat-resistant material so we can pass through laye

发表于:2019-03-06 / 阅读(109) / 评论(0) 分类 英语时差8,16
学英语单词
-cy
a pat of butter
accretion lines
Archangiopteris
arturas
Bad show !
bignew
break up with somebody
bring into line
buckshots
Camaguan
collection service
condy-
convolution filtering
could you
customisations
damnedest
double frieze balustrade
double-discharge gear pump
drag something out
draught drying cabinet
East Suffolk
elimination of irrelevant factor
empennage down load
Englishers
Esfahān, Ostān-e
espousage
expansion temperature
external payments situation
final review hearing
flutter factor
fodients
fore plane
fore-reach
Four Flusher
fumariaceous
functionally-distributed data base
go global strategy
griesa
hania
hard-lefts
Haselstein
heats of solidification
ice condensating containment
Invirase
isotopic incoherence
jack-over
labour-forces
load charge speed
Loi Mwe
Lotka-Volterra model
low-alloy tool steel
Malantouen
melt spinning method
meristem arthrospores
micro hot plate
mitral obstruction
Murud(Janjira)
oily moisture
on - the - spot investigation
overcarrying
owades
paracathodic rays
pine-tar
Pirizal
polydactyla
polyene hydrocarbon epoxide
polysyndetic
portableapps
power response
power shift
prescribed condition
pressure tight body
priestless
pyrometer cone equivalent
quenching cup
retail unit
self-diagnosable computer
shode stone
skeas
strawb
striped cucumber bettle
stripper and worker
sufferably
tea-drunkard
temporary standard
Tenia mesocolica
tharre
thevenet
thrombinogenesis
titanoideids
to say yes
transformation of random variable
twelfth days
under-fundings
unexpired insurance
unreacted mix
valve retainer lock
vetilator
weyers
working set swapping