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
adriana
aerodynamic numerical solution
aided
arctic whiteout
aricept
bernese mountain dogs
blanket insulant
boiler specific capacity
botuli(smotoxi)n
breakdown potential
Calibanus
chappos
chlorobenzylidine
close fractionating
Code of Safety for Nuclear Merchant Ships
combo breaker
cranial half-sclerotome
cylindrites
dacrymycetaceaes
deskever
dicheiria
dimerization
divided furnace boiler
effective word
endothelin
energy of electron shell
epoxide
evolutionary power spectrum
facade patterns
field speedwells
fisher's consistent estimators
half as many again as
Haliotis
Heteropholis cochinchinensis
hoop iron band
hot dipping zinc
hot patch for tire tube repairing
hot-electron emission
hydraulic boundary condition
idiopathic neuralgia
in mem.
inband signaling
individual baseline
kap-
kink of curve
kromgram
laverock
libbie
lockwoods
mobile canteen
moment vector of couple
non skeletal
noogenic
normal dose contact
oil-fuse cutout
olive trees
ordinary examination
pale-browed tinamous
paper path
papillate
penseful
photodecarbonylations
plain turkey
playboater
pneumatic tube conveyor
property transfer deed
Pruszcz
quick-dryings
quieter motor
radfulle
radiochronology
re importation
receptor of second order
reconnaissance exploitation report
road-sweepers
ronnell
running dictation
segment level sharing
Settlement Agent
shaft-drive
ship-building industry
singular correlation
site quality class
sloak
slushees
spectrum of function
sports competition
spring-trip shank
strychnized
supervinyi
surface drainage system
systems-based
thin feel
topsail brig
tumble polishing
untitheable
urban density gradient
valler
vapour phase thermal cracking
warm - up suit
wind blown soil
yawing derivative