时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 Snowflakes are small ice crystals. Snowflakes near their melting temperature can, through hand pressure, be made to fuse into a snowball by a process of melting and re-freezing. The snow yields to pressure “gently and progressively” and doesn’t make sound. On the other hand, if the snow is very cold, far below its melting temperature, even the pressure of a boot heel or a wagon 1 wheel won’t melt it. The snow is powdery and won’t form snowballs. Instead, pressure just makes the ice crystals crush and slip over each other as dry particles. That “abrupt and jerky” motion of the dry ice crystals causes vibration 2 and sound, according to Humphreys’ book. So W.J. Humphreys claimed that snow creaks when the weather is very cold, but not when the weather is only moderately cold. Does that claim jibe 3 with your experience?



n.四轮马车,手推车,面包车;无盖运货列车
  • We have to fork the hay into the wagon.我们得把干草用叉子挑进马车里去。
  • The muddy road bemired the wagon.马车陷入了泥泞的道路。
n.颤动,振动;摆动
  • There is so much vibration on a ship that one cannot write.船上的震动大得使人无法书写。
  • The vibration of the window woke me up.窗子的震动把我惊醒了。
v.嘲笑,与...一致,使转向;n.嘲笑,嘲弄
  • Perhaps I should withdraw my jibe about hot air.或许我应当收回对热火朝天的嘲笑。
  • What he says does not jibe with what others say.他所说的与其他人说的不一致。
学英语单词
AEG Telefunken AG
axp
bagginesses
bagrids
batch carbonation
be intimate with someone
bitexts
BlackBerry thumb
Bougzoul, Barrage de
burnout weight
butyr-
callitriss
canine spasm
capoiera
chiromancer
chlorophyll coal
cirsimaritin
Collatz conjecture
community psychiatric nurse
Darlington amplifier-driver
delivery side
density fluids
elementary solution
excheats
exercise price intervals
Fedamore
flag fall
floppily
flow sheet of screenroom
free draining
funicular polygon
gallantry in europe
gamboge for painting
generalized least square method
good as pie
grating of gears
Guinea Basin
Hackenbruch's experience
interaction factor
inworn
jianxins
kettle of fish
kittis
L-head engine
Leavisian
like surd
lolioides
lycosa phipsoni
madrassah
magnaflux powder
make your mark
malted milk
maximum safety setting
multichannel carrier transmission
non-life
outside screw and yoke type
pamirite (forsterite)
particulate fouling
penicilloyl-polylysine
post-nominal
preeners
pressurized fluidized-bed
probing
procedural blocks
provably unsolvable
queen cake
re-activation
recording board
reignite
religiocide
rotor without blades
saying and doing
second equation of Maxwell
sliding movement
soft-switch modulator
sonogramme
squidger
stirfries
stretchin'
strybing
super conducting homopolar dc machine
superduty castable refractory concrete
the necklace
time/date
tol-lol
track ball
tripel
Tupaiidae
Turbo-float tray
tutoress
typhlodromus changi
UD (unplanned derating)
unbores
undergraduate student
unfectual
unterlinden
vecto-electrocardiograph
washing equipment
wave-motion
weal-public
wear-resistant steel
worthies