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
accessory pulmonary lobe
adipohemocyte
armenocide
arvell
astrological sign
asynchronous measurement
bagliettoes
basic service
basketlike structure
bearing outside diameter
Bearish Harami
Black Hawk
bow strop
C-section
cassette-players
cast the anchor
changing prices accounting
chemical operationss
Chitungulu
chloro-percha
clock phase
comunication line
conoid
convo
cost of flotation
Coulter pine
crystalline-granular texture
dammar gum
decose
diazobenzenesulfonic acid
dissimilar computer
divertest
drift boulder
eight-core
exustible
flight vibration analysis
get into deep water s
greenhouse vegetable growing
handfield
hate someone's guts
henshaws
hydriodic acid
hydro napper
import curtailment
join-irreducible
juvenile drainage
Kundrat's lymphosarcoma
L-head
life-span determination
lighting fittings
lily root
mapmakers
media copying routine
Mundargi
nametag
Normanizing
opposition method
pelargonium hortorums
perovskite type structure
port and dock charges clause
posterior-anterior
predator-prey relationship
predictive text
radices stellariae dichotomae
radioactivity measuring point
rapacities
rectilinear motion assumption
reference gauge
residual solvents
rhacophorochrome
rhizoma chuanxiong
Rhododendron roxieoides
rootlike
rubber-soleds
safety remote control equipment
screened tender
seasonal runoff
selection with variable probability
self testing
shaft alternator
shared value
shooting galleries
soil enzymology
spontaneous pneumothorax
squeeze moulding machine
Stellaria uliginosa
supply chain management
surveying society
swer-
taurines
tectogene
trades-
tuda
ultracorterenol
unpreceded
vein sampling
vesicular gland
Washington Grove
Westcott cross section
wintersteens
zappacosta