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
3-mesantion
abamperes
actinoptera shirakiana
agra-agar
Albanya
amphibille
Amydrium hainanense
an essential aspect
ancient cultural relic
androgony
asian tiger mosquitoes
atoneth
Ban Pa Kha Luang
brittle strength
central neuritis
chalice vine
cherifs
classical groups
Clematis kockiana
control engineering
Cristallovar
crystelle
current microbiology
cycloheptadienes
deglobalize
Deliceto
Dilāghah
dollar value LIFO method
Edsall's disease
equivalent acidity
erratic shifts
expeditors
flavoured sausage
flexible mica
gas dynamic laser
hemiformal
hoochinoo
hormones poisoning
household rubbish
Hurst Moor
hydatopyrogenic
IDS (interim decay storage)
infra-epimeron
intertrappean
IP spoofing
iraqi-kurdish
Itapinima
laurel water
levelling concrete
limnic peat
line bank contact
liquid condition
LPRR (Low Power Research Reactor)
lynceus biformis
make a nuisance of himself
megalonychid
metacentric diagram
methoxy-
metroethnicities
missing data
mixon
mobile winder
money function
nemoraea metallica
neoholotype
order of reference of accounts
painly
panplain
pessella
profit-maximization
qingbai glaze moon palace pillow
relaxation shrinkage on wetting
rikki
ring introducer
Sacta
Sarykol'
semitangent
sheep dismount
siakam
sign on the dotted line.
sinusoidal oscillator
skew symmetric
spill money
Stainless Steel Pipe
stay of lathe
still-picture transmission
subfringe technique
supraorganism
swear something out
Taoist Trinity
tape-format plotting system
three-colour reproducer
to blow away the cobwebs
tote box
trifle
urolagnic
v-shaped antenna
vaginoplasty
wave form audio
Web author
you are so beautiful