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
above-timberline
antivagrancy
Anzob
arabinogalactan-proteins
arseno group
arshad
astringent bath
ata reduction system for oceanographic research
axis distance
back country
be hard to cultivate
Betapropiolactone
birchens
bitthead
Breteuil
bridge wall tubes
business behavior
calabur tree
Callosa de Segura
capacitive dischage
Clairefontaine
co-constructing
cockle shell
Conspersus
contextual analysis of organization
continuous batch mode
coroscopy
cyclobalanopsis salicina
data integration
delphinology
demi-tint
dentinocemental junction
distanced
drer
Dureji
electric pump control
exhausted enclosure
fan-shaped fold
feed forked connection slide block
firecracker chicken
fitted freely
freedom of transit
gastrophysus spadiceus
gemtuzumab
Grosskayna
gullers
Hirschfelder's tyberculin
hop step
hot-box
hyperketonuria
hyperoxalurias
icones
impassibility
intimate valence alternation pair!
Japanese medlar
ladysfinger
load resistant power
low-intensity drum
low-pressure measurement
maneen
Mbonda, Pta.
Millsboro
morrolan
nider
nominal pressure rating
on the water wagon
per capita consumption of farm produce
pressure cleat
product uniform space
Qasr al Yahūd
QSA
Ramus calcarinus
rated output current
reciprocal service
roam around
separable slide fastener
sewage electrolytic treatment
Sig, Ozero
simplex crusher
simulate
ska
spherolite
star charts
stream velocity
suaku
superior sagittal sinus
symphyodon complanatus
talk the kind leg off a horse
target illuminating laser radar
theophilanthropists
threephase unbalanced power
thyminalkylamine
trial
trolley-sickness
turbine-propeller aircraft engine
turn upon
ultraintuitionists
uniform loading
unscauberked
vortex visualization
withdrawal of orders
yellow-dog