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 standing army
alfred fried
Alpish
armored vehicles
arteriae thyreoidea ima
asynchronous device
Auerbach's ganglion
autosome
barbizons
bend the knee
bipolar motor
bismoke
bookin'
bottom-charting fathometer
bottomset bed
bronchocephalitis
builder's risks insurance
butyl benzoate
capacity constraint function
car-house
cartridge-charged fixing tool
child's on-line privacy protection act
cisternae subarachnoidales
conveyor fabric
corner armor
Crocodylus porosus
defect scattering
descriptive anatomy
diagonal cloth
Diandioume
dividend paying company
double action pedal
double film technique
douleia
early date
emotional design
endonyms
entail
epoxy bonded chip character
family ganging
fashionablenesses
finite strain
flashhouse
fontinaliss
forces
get into danger
giller
gonospore
hail impression
half cock
hyper-alert
IMODCO type buoy
improvement of the products
Indianize
intermediate cottons
look-on net
low-priotity ready queue
Machilus ichangensis
media association
mosaic mural
movable bed
multimini computer structure
myophily
Nasturtium palustre Dc.
natural gas reducing station
negative a ignore b gate
nickel-plateds
non-reason
oppose
output cost ratio
packed
periscope service speed
polystichum sinense
produce race
retain video memory
rewve
rocket man
runway caution lights
rural depopulation
sacrifice one's life
Saint Michael's Mount
saluretics
scaifes
scleromyotome
seepweed
self-employed people
shipping casualties
shore region
skepping
spend in
ST_religion_parts-of-religious-buildings
sulfureous
surface effect catamaran
syntax stack
teard
three-points
Triesman
unreasonable demand
vinervine
warm-natured
wheel alignment tester
write-enabled