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
above-tree-line
adaptation of methods
advanced systems inc.
alanah
aporhyolite
Arabist
backbone motion
base surface
bigamies
Bovini
calliostoma shinagawaense
captaines
carcelia (carceliella) aberrans
chronemically
colour induction
complete miscibility
concubinize
corporate-banking
corycidine
deetiolation
deferred payment transactions
dehong dais
disseverment
dissolve control unit
dorsal tarsometatarsal ligaments
Dracontium
einbender
electric chuck
emulsion opal glass
excrementize
executive produces
extended object
fertile period
filtrate reducer for cement slurry
garrison belt
gastroduodenoscopy
getterupper
gialanella
glacial stagnation
guanidinium isothiocyanate
handweaving
harmonic conjugate
high speed conveyer
Holmes Stewart phenomenon
host-to-IMP control information
houres
iatrogenic immunosuppression
intermolecular respiration
interrupt priority chip
JCSM
kvarner (kvarnerski zaljev)
lateral-thrust unit
lens blooming
liker
logical unit number
macrotone
macrovoid
magnification factor meter
maloofs
marginal syncytium
maximum picture width
metahumans
monitor action routine
moorsom
nocireceptor
non-coherent IR receiver
nonenolizable
OneID
Paroho
patented medicine
paxite
propose a motion
quick acting brake
reclaimer
Reform Club
retrospective searching
rotor wake
salt wind
samairum
Scrophularia fargesii
see sb out
self-crossed
serpent-like
single operator arc welding machine
skilless
solid-cored carbon
spoilage account
stebbings
stereogastrula
stereozone
stokehold ladder
strained tomatoes
strip biopsy
Strobilanthes glandibracteata
Sulcus venae subclaviae
tetraommatus kwantaoshanensis
Thalamosensory
thromboarteritis obliterans
totterers
wittichite (wittichenite)
work station