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
'noint
2-amino-2-methyl-1-propanol
anodynia
arranter
assembly statement
backboned animal
basu's theorem
baucus
be improved
bedeguars
bonus loading
boyband
breeding performance of the reactor performance
bubble-tube level
carre
close encounters
commissura transversa
corticium salmonicolor berkeley et broome
cottonwood wash
counterbattery fires
cumbering
cyberstranger
desiomycin A
diagnostic processor
dialling tone
duty free importation
electric source for ship station
electrical diagram
ephah, epha
final voltage
fischer's oil
flanker back
fore-rigging
Gateway to the West
genre painters
get one's hand in
glasslab
half-uncials
home for discharged prisoners
hydraulic control value
ice freeze-up
impurely
independent recoil system
isopentyl ester
Ixora
kHz (kilohertz)
knockered
lead the ring
light-brown
linking r
liquidizing
locf
low-level defence
manila b.
mashis
mediumistic
meridional orthographic map projection
mileage/ticket price table
mobile acetylene generator
multi-purpose hydraulic press
Mupung
Oreodontoides
osteotomies
Parseval's formula
penile reflex
perfect expectation damage
plexus poplilteus
pterygoideus
pureeds
pyochemistry
query optimizer
quick breaking emulsified bitumen
quinte
regime theory
restancy
rockwoods
sanguineus
Shrapnell's membrane
split-bamboo
sportsome
static data
Sulci venosi
TBLI
terrae filius
third phalanx
time background
time-costs
titration curve of neutralization
to give an example
torque horse power
Tussinol
under-groan
unitizations
unwritten sale agreement
utilization logger system
volume gas
water spirit
weldon's process
Wemco-Remen jig
wet gas cleaning
xiph-
yahooligans