时间:2019-01-02 作者:英语课 分类:60秒科学


英语课

太阳能电池板能通过自发电脉冲震落其灰尘,以确保最大限度的获得光照。


Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain. But such places often come with lots of dust. And the panels have to stay dust-free: just a seventh of an ounce of dust per square yard of panel can decrease solar power conversion 1 by 40 percent. And panels in Arizona might get covered with four times that much dust each month.


Cleaning the panels conventionally uses precious water. So researchers are turning to dust-cleaning technology developed for one of the driest, dustiest locations possible: Mars. The work was reported at the national meeting of the American Chemical Society. [Malay Mazumder et al.]


An electrically-sensitive transparent 2 material is deposited on glass or a plastic sheet that covers the panel. Sensors 3 monitor the dust levels.


Once the dust reaches a specified 4 level, the system reacts and produces a charge, with electricity generated by the panel.


The charge creates a wave over the material’s surface that physically 5 lifts the dust and tosses it over the edges. The system gets about 90 percent of the dust in a couple of minutes. So the panels can go back to soaking up rays.

 



n.转化,转换,转变
  • He underwent quite a conversion.他彻底变了。
  • Waste conversion is a part of the production process.废物处理是生产过程的一个组成部分。
adj.明显的,无疑的;透明的
  • The water is so transparent that we can see the fishes swimming.水清澈透明,可以看到鱼儿游来游去。
  • The window glass is transparent.窗玻璃是透明的。
n.传感器,灵敏元件( sensor的名词复数 )
  • There were more than 2000 sensors here. 这里装有两千多个灵敏元件。 来自《简明英汉词典》
  • Significant changes have been noted where sensors were exposed to trichloride. 当传感器暴露在三氯化物中时,有很大变化。 来自辞典例句
adj.特定的
  • The architect specified oak for the wood trim. 那位建筑师指定用橡木做木饰条。
  • It is generated by some specified means. 这是由某些未加说明的方法产生的。
adj.物质上,体格上,身体上,按自然规律
  • He was out of sorts physically,as well as disordered mentally.他浑身不舒服,心绪也很乱。
  • Every time I think about it I feel physically sick.一想起那件事我就感到极恶心。
学英语单词
accuracy limit
adenomatous polyposis coli
automatic egg breaking and separating machine
autorefractive
Bacillus diphtheriae columbarum
ball-and-socket hinge
barsimmon
berkshiress
bird-leg
boom towns
broadside on berthing
bucket arm pivot
child-sex-tourism
chlroacetophenone
cisacting element
clinical neurophysiology
coal-mining machinery
compound compression
Daussois
detection of neutrons
di(p-chlorophenyl)-methylcarbinol
dipleura
diploid heterozygote
disk golf
dispersed-powder magnetic tape
Dyscural
edge feature
electrokinetic ultrafiltration analysis
enimicitious
enridged
erythruloses
Ex-drinker
face reinforcement
financial category
flow cooler
foredoing
forhows
fuel low heating value
full-wave bridges
glycine methyl ester
grandmother-in-law
gullified
Guthriesville
Hippophae rhamnoides
house-breakers
i-conned
integrated network architecture
isoeugenol acetate
it's all relative
Jatiluhur, Waduk
L. O. A.
lower atmosphere layer
machining robot
maximum machined hole diameter
membrane cisterna
naked-handed
needle point spark gap
Niflheim
nostalgy
over-greed
parapales sturmioides
performance variable
portable foam applicator
power spectrum
power supply module
pre-recessions
preisser
program reader
quasi associated signaling
radiusing
relubrication
robot application
scaringly
semi-transparent cover
Shawell
shearing rupture
Simili
single-crank press
space division multiplexing (sdm)
speed/attitude control system
spring return button
squareflipper
steel puller
sumi-gaeshi
super-ascoloy
Theropogon pallidus
tnk-bp
unattempting
unipolar depressions
usage time
Velyka Bahachka
Vevey
vibration ability
wedge spring
witbank
word-forms
working ocular
yellow stunt of rice
yester-day
Zambales Mountains