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
a (axial)
about-faces
acidometrictitration
adversarial relationship
albizzia julibrissins
alloploids
back-mix-flow reactor
bag storage
balance for official financing
barag
bloody nose
body fluids
bond flotation
books of jonah
brainpower drain
capacity for legal transactions
carquinez str.
carriage of deck cargo
CEP (condensate extraction pump)
charles x
chess-piece
cleik
cover-model
Denver omelette
depth of frames
diffusion-controlled precipitation
disputacity
dredge up something
Dubches
Dunbaria henryi
dutch roll
dysprosodies
entertainings
exhaustive events
face recovery coefficient
FDDI
fiber channel over ip
first manned orbital flight (fmof)
floor play
format up bars
frame amplitude control
fusarium oxysporum pisi
gas valve screw
gear shaft bush
god-sister
grating coupler
harmonic point
horizontal heart
if you wish
imcompressible body
ionospheric storm disturbance
isochronous magnetic field
jaye
Jharkhand
Kittson
KT (keyboard transmitter)
laser probe mass spectrometer
Ligat's test
light stop
longitudiaalis posterior sulci
McMillan-Scott
medulla spinalis
Metchnikovellide
Mohr method
myrrhine
natural generative phonology
nervy rubber
on-light
open-jointed pipe
palatalise
parallel-axes shaving
peziza coccineas
photoelectric absolute magnitude
picryl amine
platanthera devolii
portfolio dividends
practical level
racing pigeon
rate of damaged cargo
refrigerant heater
repair of laceration of cervix
secoagroclavine
sewage effluents
sheaf of germs of holomorphic function
shivol'riargh
skillets
slag off
sodium isopropylxanthate
solicitancy
ST_weapons-and-explosives_parts-of-guns
stibamine glucoside
tacheo-
the example
thermaerotherapy
turblent Schmidt number
uk -clad
valve acceleration
vermicomposting
viscous impingement filter
winch maintenance section
worn clothes