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
acquit sb of his duties
adjustable starter
after quarterpoint
agreement price
alba atrophicans pityriasis
anhele
arterilolsclerosis
aseismic ridge
ASLAB (Atomic Safety & Licensing Appeal Board)
average duty
B.I.O.M.A.S.S.
babeship
calycin
codium reediae
coefficient of total determination
concreting without longitudinal joint
coram non judice
coredon
culex (culex) whitei
Delprosyn
detection method
diluted soluble oil
dirty receipt
disymmetry
down-faultings
draft distributing box
driving moment
encroach on ecological balance
exceptional condition code
feoffer
fillet of screw
fineries
finned rocket
flare spectrum
fluorescent X-ray spectroscopy
frame lift
fruitist
global tolerance
got to the point
half lethal concentration
hard cloth
have a narrow escape
hawse-plug
holowesko
homogeneous design
hopf
Hovd
hui
inductance box
institutoes
intransitive preposition
isometronidazole
job selection
letters of business
lexicogrammar
ligamentum palmaria
local yield of the material
louser
low-gi
magnetic spherule
marstressing process
microvibrograph
mindcraft
mollyhawk
multi spindle drilling machine
multi-loquacious
number-crunchings
overbaul
packing sheet
pan-naso sinusitis
paramarginal resource
PAVM
peak deviation
photorheological
polarographic cell
queu(e)ing discipline
Reichstein's substance E
repair manual
ridger body
right to elect
roadsman
rocher
sack storage room
Saussurea yunnanensis
semestrial
serumal calculus
silvercity
sireless
snowpatch
Sopers
spontaneous hyperinsulinism
street drainage
temperature-measuring element
umaru
under-citizen
veterinary toxicology
Wagner, Richard
waited about
Wallace, Sir William
water spring
whingy
wide duck