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-bromdiethylacetylurea
aegis
alamo'o
amplitude half adder
arriving draft
automatic telescope
back number
beautified
brass standard
breaking of rest period
Brosimum
bullet perforating gun
business enterprice
calcaneo-metatarsal ligament plantar ligament of tarsus
compound-turbine
conical drum hoist
cooperative research
dalcas
data hierarchies
declutters
dianthranilic acid
document of passenger transportation
duplexer of wave-guide system
enigmatise
episulfoniums
external student
favored with
Festuca pseudovina
fibrous texture
filter-press action
freehold of office
friction effect
Girard Bay
girk
give sb a sound slating
handkerchief lawn
hemorrhoid-dispersing injection fluid
hexagon nut with collar
Hoarusib
hydroperoxidases
hyperventilators
impellor
innocent xis
input form
input ramp
insaturation
inspection of arms
inter-faiths
interpretatitive program
invested capital
ITB
j.i.s.(japanese industrial standard)
Jarmen
jeupardy
just J
karyotypical
kathrada
kinaki
knocked-down in carload
lieutenant commander
lithium sulphide
manometer differential
martime satellite
maximum temperature of a capacitor
mechnaically-operated nozzle
misnumbered
mockbirds
modern dance
mouthings
nineteenfold
norbrook
outer edge of the platform
Pachaug
panaeolus solidipes
Paraisópolis
Pchelarovo
pressed work
prigging
primary characteristic
prolixt
pusillum
rami anteriores nervorum thoracalium
recovery of premises
resolution limit
s-shaped harrow
securities transfer agent
semi-natural language
sidewipe
sizoo
slotting end mill
spring out of
stopen
subcones
substitutional defect
syndrome of lingering heat
table money
tunnelling research
unheer
user-friendly interface
water-soluble gum
web-servers
william menningers