单词:seasonal sampling
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The story of how we have systematically observed the heavens begins in the days before recorded time. For primitive man, the sun reigned supreme. Its recurring cycles of light and darkness formed the
The best restaurant in the world is Eleven Madison Park, a New York City spot famous for serving up multi-course meals in its upscale location on Madison Avenue. 全球最棒的餐厅非麦迪逊十一号餐厅莫属,该餐厅位于纽约的一个著
THIS IS AMERICA - Seasonal Music: Songs About Spring BARBARA KLEIN: Welcome to THIS IS AMERICA in VOA Special English. I'm Barbara Klein. STEVE EMBER: And I'm Steve Ember. This week on our program, we play some favorite songs about spring. (MUSIC - A
美国已发现的猪流感病毒和在墨西哥引起致命传染的是同一病毒.猪流感是什么东西?我们将如何应对?这里解答你的所有疑惑。 The swine flu virus in the U.S. is the same one causing a deadly epidemic in Mexico.
QC procedure 品管流程 What issues do we need to address to work out new QC procedures? 在制定新品管流程之前,有哪些問題必須先處理? quality standard 品質標準 This year, Metro Factory experienced a noticeable decline in q
1.audit 审计 2.attestation 鉴证 3.credibility 可信赖程度 4.audit of financial statements 财务报表审计 5.agreed-upon procedures 执行商定程序 6.high levels of assurance 高水平保证 7.compilation 编制 8.reliability 可靠性 9
Beer Gets a Seasonal Twist on Taste Its weird beer time in America. Beer and ale are already available, any time of year, in familiar varieties: lager, pilsner, stout, India pale ale. But perhaps inspired by candymakers and coffee bars, U.S. brewers
1.Bending 弯曲 A: What kind of parts do you usually need to bend? B: Tubular parts or stampings. A:什么样的零件一般需要进行弯曲加工? B:管状零件或冲压件。 2.Cycle time 工作周期 A: What is the cycle time of the injection molding machine? B: Three
JUDY WOODRUFF: As bad as circumstances are for people who can't find a job, there is a different, buttangible challenge for Americans who have work, but earn barely enough to get by. For them, as NewsHour correspondent Kwame Holman reports, there is
SCIENCE REPORT – January 3, 2002: Seasonal Affective Disorder By George Grow This is the VOA Special English SCIENCE REPORT. Some people feel sad or depressed during the winter months in northern ar
WASHINGTON, July 19 (Xinhua) -- The number of Americans initially applying for unemployment aid last week rose sharply after hitting a record low since mid-May in the previous week, the U.S. Labor Department reported Thursday. The figure for seasonal
By Jessica Berman Washington 06 February 2008 Researchers say measles, which has been successfully controlled in most countries thanks to vaccination, remains a killer disease in Niger, in part because of migration triggered by the rainy season. VOA'
How To Prevent Seasonal Mood Disorder When the winter season arrives, the days begin to get shorter and shorter. During seasonal shifts, it is not uncommon for people to experience alterations in their moods. Commonly, negative feelings and attitudes
Listen to the descriptions and check whether they like or dislike their drinks. 1.This champagne has a special fresh and delicate taste.Is it the seasonal champion? 2.Well, I like its tangy taste.I'm completely freshened up! 3.This is the most tastel
It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th
left-skewed 左偏 negative-skewed 负偏 right-skewed 右偏 positive-skewed 正偏 contingency table 列联表 sampling distribution (of a statistic)(某个统计量的) 抽样分布point estimate 点估计值 point estimator 点估计式 unbiased
NOEL KING, HOST: Today is the winter solstice. It's the shortest day of the year, and this is also a time of year when a lot of people feel down or depressed. Now scientists think they have new information on why short days lead to such dark moods. N