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-picture
accumulation of stock
active duty
ad placitum
adsorption efficient
aeroplane rule
Agriophyllum arenarium
AK-Mycin
alignment behind the tractor
america-first
Amoeiro
bacterial diarrhea
basketball leather
be annexed to
bebop
belleflor
biodemes
Broadman's area 4
by hook or crook
byass
cacophemism
carabidoid stage
carcinomatous peritonitis
cataclysmatist
chicanismo
chopped lightning impulse
collective interaction
commercial staff and workers troops
control of wage fund
cost recovery basis
Croatianness
cultural war
curarized
diatomite product
embrik-strandia bimaculata
enclin'd
entin
Eurodinner
fast response
feldspathic quartrite
FeMo-co
fibroareolar
fixed pressure drop flowmeter
Gesell developmental schedule tests
gone under
ground waste rubber
hare-wired numerical control
harrua
henley
high-temperature brazed joint
houseparty selling
in-one
insolubilized enzyme
interlocking consolidation
iridium monosulfide
jean-francois
leakings
Leavittsburg
logic signal converter
matakams
mealy
mica plate
Monterosi
morbuss
Mubarak, (Muhammad) Hosni
musacchio
muss-be
neptunic acid
non-patrials
on the jildi
opening device
panoramic monitor
peckled
pentose-phosphate pathway
picrolite
pinback
positive after potential
pressure ratio in cylinder
prunus hirtipes hemsl.
pseudocercospora cruenta
red letter days
reference subcarrier
rhombate(rhomboidal)
Romance of the Three Kingdoms
sales profit and loss
semiautomatic coding
space launch vehicle technology
sudanophilic
summersville
suspi
t-ra
thorough-put
tour mate
transiton element
tricyclohexylmethylenephosphine oxide
Tshekh
underground circuit
wall light with guard
Weizmann, Chaim
West Manchester
zero position indicator