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
ability to ball
accident free
admiral's bridge
air compressor lubricating oil tank
air survey
alignment pose
alinsky
Altman
Andalusia, Andalucia
aphyric texture
ash shubah
atlantean centrum
Axonocrypta
Bacillus wehmeri
barleybrakes
bellah
bloody shames
centini
changcheng
chronic violator
class limits
complementary bicmos logic circuits
conduction current of capacitor
conical hob
corrodentia
crista acoustica
Daskop
dematerialisation
DH,dh
direct-loading machine
dithioerythritol
drain-substrate capacitance
drink to that
dumitru
economy running system
ethnomedicine
faa coordinator
fermented goods
file specification syntax
flame-spray coating
formerward
fractional linear transformation
general forum
glyndebourne
go out of use
gold-leaf electroscope
grisp
group separator
h.a
hak
highly singular potential
homophilia
icerd
industrial subsidies
infrared radiation curve
inseminator
ipomoea pes-caprae sweet
Jazi
King I.
like a Trojan
Lincoln Center
locants
loosening width intervals
Mahmud I
megarrhizin
Micron Technology
mont-sainte-anne
non-dimensional parameter
notaeum
open tube manometer
operational program
Paeonius
penette
Phlomis kansuensis
pompelmoose
pseudo-osteomalacic pelvis
radar deception
reprobations
research diagnostic criterion
residual stability range
RF-C
sash-window
single-woven
stealers
steam bath-room
steam strainer valve
Tezontepec
time to purchase
toothcare
traffic simulation
tread compound
Tshindjamba
unreinforced surface
variable delay pulse generator
Venda Nova
virtual integration
water outlet valve
watered capital
wedge planting
Win-Kinase
ziyuglycoside