时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 “Let’s nuke it in the microwave,” we often say as we pull a frozen dinner out of the freezer. That figure of speech seems to express the fact that our experience with nuclear power and with microwaves goes back only a few years, while our experience with fire goes back thousands of years. We seem to be reacting to the novelty that nuclear power and microwave cooking have in common. They don’t really have anything else in common. Microwaves are electromagnetic waves, exactly the same as visible light except that microwaves have much longer wavelengths 1 than the light our eyes detect. The first large-scale use of microwaves was in radar 2 in the 1930’s. Now microwaves are also used to transmit telephone and television signals. Microwaves cook food by heating the liquid water it contains. Even frozen food contains some liquid water, at least on the outside surface exposed to warm air on the way from the freezer to the oven.



n.波长( wavelength的名词复数 );具有相同的/不同的思路;合拍;不合拍
  • I find him difficult to talk to—we're on completely different wavelengths. 我没法和他谈话,因为我们俩完全不对路。 来自《简明英汉词典》
  • Sunlight consists of different wavelengths of radiation. 阳光由几种不同波长的射线组成。 来自辞典例句
n.雷达,无线电探测器
  • They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
  • Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
学英语单词
a man with plenty of guts
absorption mechanism
acoustic detection
active star networks
adaptive response
adenosine-5'-triphosphate
algophilists
American gallon
andromorphs
anye
be purposed
bedrift
bimolecular layer
black label
caninoes
cellulosic plastics
compfil
crater pit
current cycle
Deep Sea Drilling Project
deep water wave
Delphinidin-monoglueoside
dermacentor variabiliss
dihydroxy benzhydrol
doughnut chart autoformat
ECITO
endorse a check
energy spectrum analysis
first etching
form data
full valuable consideration
gargouillade en dehors
heatwave
Hoenderloo
honeycomb-weave
interpretative trace program
Jaredites
kaua'i
kirson
lateral fovea
Laurie I.
licorice sticks
Loxogramme
Lozzo di Cadore
lushe
merit consideration
minimum-latency coding
multi-level precedence and preemption
multigyms
Neidpath Castle
network of observation
nitrazepams
non-luminous flame
normal operating speed
Offertorium
Options Backdating
outgoing broadcast channel
overhead lockers
pack cloth
palmyra (tadmur)
Pedro Muňoz
Peles
phonon-assisted tunneling
piping bags
plough steel
poppings
post crane
power off contact
pre-cited
projector station
protected cell company
Pseudomugilidae
Q-value of antenna
quaternary ocean
raghead
rarefyine osteitis
repainted
rotatory condenser
rubber tape
Rubenists
Rzgów
sactibiotic
sand conditioning machine
Setaria yunnanensis
short log
skill at
sodium sulfocyanide
special purpose range
spiroceratids
stogdill
support microprocessor
swallow hard
taris
Tendou
thermal transfer fax
thronged
transformer
tyre shoulder
ungroaning
unwordily
value before notching
wild-track