有效噪声温度

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(580) / 评论(0) 分类 赖世雄中级美国英语

There are six characteristics of speech, all of which are vital to speak effectively. In this section we'll look at each of them separately. These speech characteristics are basically important to you

发表于:2018-11-28 / 阅读(309) / 评论(0) 分类 疯狂英语2001年

BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely

发表于:2018-11-28 / 阅读(338) / 评论(0) 分类 疯狂英语2001年

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(352) / 评论(0) 分类 新东方背诵文选

AS IT IS 2014-05-06 Looking for Vaccines Outside the Cold Chain Hello, and welcome back. I'm Jim Tedder in Washington. Today we will help you improve your American English while giving you some new information about medicines. This is the kind of thi

发表于:2018-12-16 / 阅读(177) / 评论(0) 分类 2014年VOA慢速英语(五)月

By Melinda Smith Washington 31 August 2007 Centuries ago doctors used hypnosis to help relieve the excruciating pain of surgery. It then fell out of favor with the introduction of anesthesia. Now as VOA's Melinda Smith reports, new studies show a hos

发表于:2018-12-16 / 阅读(231) / 评论(0) 分类 2007年VOA标准英语(八月)

1. drug company=pharmaceutical company 医药公司n. 2. promotion=marketing 营销n. 3. increase=escalate=rise=go up=grow 上升v. 4. research=study=survey=investigation 研究n. 5. work=be an effective way=be useful=help=achieve=succeed=have an eff

发表于:2018-12-18 / 阅读(156) / 评论(0) 分类 雅思英语

Lesson 156 Part Ⅰ Warming-up Exercises Spot Dictation: The Temperature Check Last winter we had kind of a, uh, cold winter and I was home in bed _____ one night and listening _____ my radio. And, uh

发表于:2018-12-27 / 阅读(187) / 评论(0) 分类 英语听力入门 (全四册)

Ground - Connecting the Earth to electrical equipment with a conductor. This is done so current overloads (perhaps due to a lightning strike) can be safely diverted to the Earth. Ground Fault Circuit

发表于:2019-01-03 / 阅读(181) / 评论(0) 分类 电信英语

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(341) / 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(279) / 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(283) / 评论(0) 分类 音乐咖啡厅

By Al Pessin Brussels 13 June 2007 U.S. Defense Secretary Robert Gates says the NATO alliance has demonstrated that it can be effective in Afghanistan in spite of continuing shortfalls in the number of troops member-nations are providing. VOA's Al Pe

发表于:2019-01-06 / 阅读(253) / 评论(0) 分类 2007年VOA标准英语(六月)

By Jessica Berman Washington 14 May 2008 Researchers have determined that commonly prescribed triple-drug combination therapies that use old antiviral drugs are the most effective for suppressing the deadly virus that causes AIDS. The findings have m

发表于:2019-01-09 / 阅读(212) / 评论(0) 分类 VOA标准英语2008年(五月)

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(234) / 评论(0) 分类 英语杂谈

GUY RAZ, HOST: I want to ask you about this really famous Talmudic notion - actually, it might be that in the Quran as well - but this idea that, you know, if you save a single life, then you have saved all of humanity. You know that one? PETER SINGE

发表于:2019-01-17 / 阅读(179) / 评论(0) 分类 2017年NPR美国国家公共电台5月

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(226) / 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(184) / 评论(0) 分类 科技之光

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(289) / 评论(0) 分类 阅读空间

PARIS, Aug. 19 (Xinhua) -- Marine scientists and representatives from the private sector and military establishments would meet at UNESCO at the end of this month to measure noise's impact on marine life, the Paris-based UN scientific branch UNESCO s

发表于:2019-02-18 / 阅读(187) / 评论(0) 分类 英语新闻
学英语单词
acool
acoustic line
adenomammectomy
alphabetic-numeric
analytic quadratic differential
anchor fitting
ANI
anti-suffocation valve
application for opening bonded warehouse
arcuate collecting tubule
arrive at an agreement
assuras
aubagnes
august
autocorrelation sequence
bantams
bat cave
Bicaj
biological conservation
bispinosa Boophilus
bottom-dump
branchial lobule
came into being
cant-moulding
Carbamylaspartotranskinase
cattle anemia
Cayley-Klein parameters
cement-bound road
centralized load
Chasseral
Chinacrinre
chisel-point share
clash of personalities
class Taxopsida
coil spacing
Compton electrometer
constant-head meter
counterweight
cregeens
double-shelled
electric decantation
Eurisko
fan-in argument
flurazepam
gang reamer
garry oaks
geer
heos (highly excentric orbit satellite)
Heteractinida
Hispanicisms
Hoechst
horsebrasses
hydraulic rope-geared elevator
ignalina
kitchenary
labor markets
Limbones I.
liquid nitriding medium
lithochromic soil
lock byte
low-speed gear
Mana P.
Mickūnai
Minsmere Cliffs
modified digit encoding
molybdenumiron
noncontainerizable
nonhungry
nonproductive project
number carrying system conversion
operational factor
parentcraft
pawns off
pille
polar conic
post-indexed
pulses per miles
radiation opacity
rausu
red-letter edition
Sachs's test
salix pendulina blandas
Schiehallion
scroll work
semiempirically
shahriyar
single-step form of income statement
Snecma
soehartoes
solpugid
spectral radiance increment
status seeking
submarine ore-carrier
T-adherin
thermal mechanical performance test
thrall
truncated upland
unencumbered balance
unsourced
vector electro-oculogram
weod
workboats