单词：perforated panel sound-absorbing material
单词：perforated panel sound-absorbing material 相关文章
Catch Me If You Can FBI Agent: I'd like you to take a look at something for me. Tell me what you think. Frank: That’s a 1) fake. FBI Agent: How do you know? You haven’t looked at it. Frank: Well,
疯狂英语2003年
With China's solar panel industry still facing challenges in the European Union, despite an agreement to overcome anti-dumping penalties, the industry itself in China is looking for ways to cope. CRI's Li Dong has more. Polycrysilicon is an indispens
世界各地新闻集锦
This is Scientific Americans 60-Second Science. I'm Cynthia Graber.This will just take a minute. 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
Scientific American(八)月
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.
60秒科学
By Leta Hong Fincher Washington 07 March 2008 An advisory panel for a U.S. government health agency recommends greatly increasing the number of American children who receive the influenza immunization each year. The panel suggests every child from ag
VOA标准英语2008年（三月）
BEIJING, Jan. 4 (Xinhua) -- Samsung, LG and four Taiwanese firms have been fined heavily for price-fixing of liquid crystal display (LCD) panels on the Chinese mainland. These companies have been ordered to pay 144 million yuan in fines and return 17
英语新闻
High-Tech Material Cools Buildings, Sends Heat Into Space 高新技术材料给建筑降温,将热量送入太空 Researchers at Stanford University have developed a new material that can move heat out of buildings and into space. The researchers say
2014年VOA慢速英语(十二)月
A forecast by the United Nations climate science panel that Himalayan glaciers will melt by 2035 has become mired in controversy following revelations that it was not based on scientific studies. The chairman of the panel says the error arose because
VOA标准英语2010年(一月)
US Panel Recommends Approval of Drug to Prevent HIV The U.S. Food and Drug Administration held a marathon 12-hour hearing Thursday to evaluate evidence that Truvada, a once-daily pill currently being used to treat AIDS patients, also could be used to
VOA标准英语2012年(五月)
Panel Urges Study of Nanomaterial Risks The nano market is booming. In 2009 developers generated $1 billion from the sale of nanomaterials. The global market for products that rely on these materials is expected to grow to $3 trillion by 2015. Yet wi
VOA标准英语2012年(二月)
MARY LOUISE KELLY, HOST: President Trump's Election Integrity Commission went to New Hampshire yesterday to hear from witnesses about voter attitudes and voter fraud. The panel's stated mission is to find ways to boost confidence in the integrity of
2017年NPR美国国家公共电台9月
This is scientific American ,60 second science. Im Chris D..ta. Got a minute? In less you have a pair of noise-cancel headphones. Flying can be annoying to the ears. A lot of low-pitch rumbling makes it into the cabin. The problem is ,the wings ,floo
2015年Scientific American(五)月
By Deborah Tate Capitol Hill 06 September 2007 A report by a panel of retired senior U.S. military officers has concluded that Iraq's security forces will not be able to take over the country's security from U.S. troops for 12 to 18 months. The repor
2007年VOA标准英语（九月）
By Deborah Tate Capitol Hill 10 June 2008 A former agent with the Federal Bureau of Investigation says U.S. interrogators' use of coercive techniques against suspected terrorists has not produced reliable intelligence and may have helped recruit a n
VOA标准英语2008年（六月）
By Peter Heinlein Addis Ababa 18 December 2007 The African Union has inaugurated a panel of distinguished citizens to promote efforts to prevent conflict on a continent that has seen more than its share of wars. VOA's Peter Heinlein reports from AU h
VOA常速英语2007年（十二月）
复合材料及汽车词汇 Acetyl 乙酰 Acid-proof paint 耐酸涂料, 耐酸油漆 Acrylic fiber 丙烯酸纤维 Acrylic resin 丙烯酸树脂 Active filler 活性填料 Adapter assembly 接头组件 Addition polyimide 加成型聚酰亚胺 Addition polymer 加聚物 Adjusting valve 调整阀，
英文语法词汇
The Philippine government has dismissed the panel of negotiators brokering peace talks with the Moro Islamic Liberation Front. VOA Correspondent Nancy-Amelia Collins in Jakarta has more. Philippine President Gloria Macapagal Arroyo speaks on nationa
VOA标准英语2008年（九月）
China, EU to negotiate over solar panel friction BEIJING, Sept. 11 (Xinhua) -- The Chinese government on Tuesday sent a delegation to Europe to negotiate with the European Union (EU) about the trade friction over solar panel imports. The delegation,
英语新闻
Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have
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