时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 “Probably all, or nearly all, who have experienced a cold winter, are familiar with the cheery cry of the snow as it is pressed against a hard surface by the steel tire of a wagon 1, for instance, or even onto a pavement by the heels of one’s boots.” Those words were written many decades ago by the physicist 2 W.J. Humphreys in a book called Physics of the Air. Humphreys went on to suggest that creaking of snow is connected with very cold temperatures. Humphreys said that when the temperature is just below freezing and snow is easily packed into snowballs, footsteps and rolling wheels won’t create much sound. His reasoning is based on the fact that applying pressure to ice lowers its melting temperature. If ice is so warm that it’s about to melt anyway — say, at a temperature of 30 or 31 degrees Fahrenheit 3 — then a little pressure will be all that is necessary to melt it.



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.物理学家,研究物理学的人
  • He is a physicist of the first rank.他是一流的物理学家。
  • The successful physicist never puts on airs.这位卓有成就的物理学家从不摆架子。
n./adj.华氏温度;华氏温度计(的)
  • He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。
  • The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。
学英语单词
a cubic yard
alternating impact machine
analysis of loan and discount of banks
Andau
anzaldua
auditing by rotation
behavioristic psychologies
bidden
binato-pinnate
biocomponents
bottom heading
breaker calender
chlorbycyclen
chromatographic mpbility
Cineston controller brake valve
community level
conditional error
continue to increase in height
Crozetts
cuparene
cylindric roaster
dahlia B
decocked
drown in
ds RNA
dummied out
El Calvario
electrode type salinometer
embryo oceans
evolutionary optimization
fetch sth to a close
fiberotomy
frame distortion
genetic psychologies
glom on
gloss paper
got at the root of
grand mal seizure
haemorrhaged
Hajdudorog
hole sizer
hostay
IBF
IGM-SPHA
inferiority complexes
Jordanella
kumons
land lady
litvack
lobuli (siug-lus) corticalcs (renis)
longitudinaly
Markan
materials balance approach
monosubstituted
multicores
nanofiltration membrane
natural productiveness
non - performing loans
nonrelocatable phase
numerical solution of integral equation
objective exchange theory
observational network
Order of St. Patrick
patents as barrier to entry
perfect combustion catalyzer
phenylboron dibromide
pneumatic oil gun
primeroes
projection lamp
prominence magnetic field
psephocracy
pyrologists
quercus aquifolioides rehd.et wils
reciever horn
rind grafting
search light beacon
secondary flow pattern
source statement field
spring squeak
stamp collection
standing wave apparatus
steel fiber reinforced shotcrete
step mother
strange attractors
subcompact cars
substitutively
supergenesis
temperature change rate
temporary shelter
TERPROM
Thladiantha longisepala
toota
top-ranking
travel(l)ing self-service shop
turn on someone
Ural River
vetulicolid
well-aerated
wet-on-wet dyeing process
windfucker
work breakdown structure chart
Zaragozan