噪声等效功率密度

12. Stop the Noise Mr. Chen is talking to his neighbor Mrs. Wang. C: May I have a word with you? W: Sure. What's the problem? C: It's about your son. I'm tired of his making so much noise at all hours

发表于:2018-11-27 / 阅读(508) / 评论(0) 分类 赖世雄中级美国英语

5 家用电器 3句英文任你选 I want to buy an air conditioner. 我想买台空调。 Is this washing machine automatic or semi-automatic? 这款洗衣机是全自动还是半自动的? This refrigerator is of low noise design. 这款冰箱是低噪

发表于:2018-12-31 / 阅读(122) / 评论(0) 分类 商务英语口语每天三句半

Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H

发表于:2019-01-02 / 阅读(149) / 评论(0) 分类 60秒科学

Wherever I drove my old car over 55 miles per hour ,it vibrated terribly, so I decided to sell it. My first customer wanted to buy the car, and I battled with my conscience over whether or not to tell

发表于:2019-01-03 / 阅读(286) / 评论(0) 分类 英汉幽默故事选读

It was the first day of school. As the principal made his rounds, he heard a terriblecommotion coming from one of the classrooms. He rushed in and spotted one boy, taller than the others, who seemed to be making the most noise. He seized the lad, dra

发表于:2019-01-05 / 阅读(169) / 评论(0) 分类 趣味英语

英文歌词: It's easy to feel like You're all alone To feel like nobody knows The great that you are The good that's inside you Is trying so hard to break through[00:29.91]Maybe it's your time to lift off and fly You won't know if you never try I will

发表于:2019-01-05 / 阅读(220) / 评论(0) 分类 音乐咖啡厅

When they wheel you into the operating room, climate change is probably the last thing on your mind. But maybe it should be on your anesthesiologist's mind. Because the gases used to knock you out contribute to global warming. Researchers, including

发表于:2019-01-08 / 阅读(229) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American 60 Second Science, I'm Steve Mursky, Got a minute? The average price for a gallon of gas in the U.S. today was nearly $3.78 per gallon. But why do we calculate fuel expenditure in dollars per gallon? Wouldnt a more realist

发表于:2019-01-08 / 阅读(186) / 评论(0) 分类 Scientific American(三)月

Chicagos Argonne Lab Developing Battery of the Future CHICAGO In 2012, the Department of Energys Office of Science awarded a $120 million grant to a new technology center focused on battery development - headquartered at Argonne National Laboratory i

发表于:2019-01-14 / 阅读(117) / 评论(0) 分类 VOA标准英语2014年(七月)

[0:0]entertain招待,款待 [0:11.2108]entertainment enthusiasm entitle entry娱乐,文娱节目 热情,热心 给...权利,给...资格 参赛的人 [1:7.0247]environment envy equality equation环境,周围状况 忌妒,羡慕 相等,相同 议程,等式 [1:59.5258]equivalent era erect err

发表于:2019-01-16 / 阅读(271) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

Finance and Economics;Noise pollution: Shhh! 财经;噪音污染:嘘! Why quiet carriages don't work, and how they might be made to 让车厢安静缘何行不通,如何才能静下来? Quiet carriages on trains are a nice idea: traveller

发表于:2019-01-27 / 阅读(155) / 评论(0) 分类 经济学人财经系列

> 28 世界卫生组织关于噪音污染的报道 DATE=3-29-01 TITLE=SCIENCE REPORT - WHO Report on Noise BYLINE=Caty Weaver Start at 59

发表于:2019-01-30 / 阅读(141) / 评论(0) 分类 科技之光

Instructions If a dog is a year old, that is the equivalent of 15 in human years (not seven as we always thought). 如果狗是1岁,相当于人的15岁(而不是我们平时知道的7岁)。 When a dog reaches the age of two, he is already approxi

发表于:2019-02-01 / 阅读(141) / 评论(0) 分类 实用英语

enable vt.使能够,給予权利或方法 energy n.精力,精神,活力 解析:apply one's -gies to致力于 devote one's -gies to致力于 direct one's -gies to致力于 brace one's -gies振作精神

发表于:2019-02-03 / 阅读(167) / 评论(0) 分类 英文语法词汇

今天我们要学的词是equivalent。 Equivalent, 意思是相当于,等同于。《华盛顿邮报》报道说,9/11恐怖袭击事件以来, In Washington and the surrounding areas, 33 building complexes for top-secret intelligence work are

发表于:2019-02-03 / 阅读(157) / 评论(0) 分类 英语每日一词

今天我们要学的词是equivalent。 Equivalent, 意思是相当于,等同于。《华盛顿邮报》报道说,9/11恐怖袭击事件以来, In Washington and the surrounding areas, 33 building complexes for top-secret intelligence work are

发表于:2019-02-05 / 阅读(144) / 评论(0) 分类 英语单词荟萃

Idiom: Put your money where the mouth is ( support your words with actions )Hit the book: Humming noise Auxiliary Flicker Whine Hydraulic Taxiing Unnerving Prolong Flap The humming noise when you board That's the auxiliary power unit at the back of t

发表于:2019-02-16 / 阅读(150) / 评论(0) 分类 趣味青春英语

entitle vt.把…称作 entrance n.入口;进入;入场 entry n.入口处;登记;进入 envelope n.信封 environment n.环境,外界;围绕 environmental a.环境的,环境产生的 env

发表于:2019-02-17 / 阅读(355) / 评论(0) 分类 考研英语

Chances are youve heard or rather, not heard the effects of a noise gate, but unless youre into audio engineering, you probably didnt realize it. Ever been at a concert or listen to a radio broadcast where it sounds great when theres music playing or

发表于:2019-02-18 / 阅读(216) / 评论(0) 分类 阅读空间

2011年5月16日深夜,新浪微博用户、鼎晖创业投资合伙人王功权在其微博宣布私奔,为爱放弃一切。这条微博被瞬时间传播,国内各大网站、论坛社区等也开始热议此话题。 请看相关报道: T

发表于:2019-02-26 / 阅读(131) / 评论(0) 分类 英语口语
学英语单词
abnormality of teeth in number
accaroid
acceleration period
accordant summit level
after cofferdam
afterhood plate
aldosidic
all-digital
automatic exchange board
beginning of circular curve
bemkin
Bessel function of the third kind
boron whisker
Brassaiopsis kwangsiensis
brotocrystal
burned area
circussy
cmos memory ic
continuous service output(cso)
cross structure
cycloheptadienes
Desktop gadgets
dietary calcium
disincentivising
dose-independent ADR
dummygrane
earnings performance
Egyptian fraction
elasticity of substitution
Essertes
etherealises
executive evaluation
fast-track
fluid-bed boiler
fursuiting
fuse cap
general average counter guarantee
genus Erysimum
gradient related method
gradient solar pond
Gualicho, Salina del
have the loan of
high frequency ferrite
holding airspace
hormopoietic
index number of price
intercostal lymph glands
jack-shaft
kasuga jinja (japan)
kooi
Kwazulu
laborate
laemodipods
life-time expenditure
liquid assets variable
liquid penetrant test
Luso
mappability
message switch
methylnaphthohydroquinone
Mosquitos, Costa de
mound- shaped curve
movable foot bridge
mullein pink
nervi anales
nursi
panentheistically
perforating gunshot wound
pestis
plantar lymph-sac (foot)
policy structure
polystat
puniship
Pyrine-3-Carboxylamide
quaffed
re-surface
reinagles
remi lumbalis
retirements
reversedly
scroll ribbon
seed growing
slovene
snite
source of fission neutrons
space quantization
steel cable bridle
Stephanotis pilosa
Studholme, Mt.
tax offices
three - point turn
thripid
traffic intensity factor
trendinesses
triazol
true-time
tubals
underlying company
unit-power construction cost
vortex-motion
water orchids
youthculture