标签：acceleration 相关文章
From NPR News in Washington, Im Lakshmi Singh. The sell-out in major markets around the world is playing out on Wall Street. In late trading, the Dow plunged more than 400 points; its now down more than 500 points, or more than three percent. The SP
2015年NPR美国国家公共电台8月
3D Printer Makes Replica of Iconic Sports Car 3D打印制作标志性跑车的复制品 Cars with parts made by 3D printers are already on the road, but engineers are still learning about this new technology. While testing the possibility of printing
VOA标准英语2015年(五月)
Until just days ago, Toyota may enjoy one of the best reputations in the car business with sales to match. Now the company has a huge problem on its hands, potentially dangerous accelerator problems, and recall of millions of vehicles. Tonight, Toyot
万花筒2010年
China is getting serious about corruption at its banks. At least that seems to be the message. Authorities have now detained the head of China's Postal Savings Bank, accused of economic crimes. It's just weeks after another top banking executive was
万花筒2012年
By Jim Malone Washington 29 June 2006 The U.S. Supreme Court dealt the Bush administration a major legal setback in connection with the war on terror Thursday. The high court ruled that President Bush had overstepped his authority in ordering milita
2006年VOA标准英语（六月）
Genome Shows Humans More Gorilla-like than Thought Sixty scientists worked over five years to sequence the genome of a single female lowland gorilla, the last of the great apes to have its DNA mapped. According to lead author Aylwyn Scally, of the Tr
VOA标准英语2012年(三月)
A panel of federal judges in San Diego, California is expected to rule on whether to consolidate a large number of lawsuits filed nationwide against Toyota. Toyota has been inundated with lawsuits due to safety concerns that have led to the recall of
VOA标准英语2010年(三月)
Chronically Hungry Numbers Decline 全球饥饿人口呈现下降趋势 Global hunger continues to decline. About 805-million people are reported to be chronically undernourished. That's down 209-million since the early 1990s. 全球饥饿人口继续呈
VOA标准英语2014年(九月)
UNICEF Re-establishing Basic Services in CAR A top official of the U.N. childrens fund said stronger peacekeeping and humanitarian efforts are needed in Central African Republic. The country has been wracked by inter-communal violence since December,
VOA标准英语2014年(四月)
Vehicles May Soon Be Talking to Each Other 汽车或许很快就能相互交流 WASHINGTON U.S. regulators are close to approving new standards for enabling vehicles to communicate with each other, hoping the new technology will reduce traffic accide
VOA标准英语2014年(四月)
By David Gollust Washington 04 October 2007 U.S. Secretary of State Condoleezza Rice begins a trip to Russia and the Middle East next week that will include five days of shuttling among Israeli and Palestinian officials. She will lay groundwork for t
2007年VOA常速英语（十月）
Japan's Nikkei Index rose for the third straight day following gains overnight on Wall Street and a week of fluctuation amid global worries about a possible U.S. recession. Financial analysts say concern is steadily growing among investors and offici
VOA双语新闻 2008年3月
Cheetahs reign as the fastest land mammals capable of sprinting at speeds reaching about 65 miles an hour. But when hunting in the wild, the big cats rarely reach top speed. Instead they rely on rapid acceleration and agility to catch their prey. Tha
Scientific American(六)月
In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella
2017年Scientific American(三)月
Heset out to investigate a hundred-year-old theory that said asteroids werepowered by the Sun itself. It was called the Yarkovsky effect. The Yarkovskyeffect is a very small acceleration and acts on asteroids and what it is is ifyou take a model, the
探索与发现2014年
By CCTV reporter Su Yuting Europe's biggest carmaker, Volkswagen, is recalling more than 2.6 million cars worldwide, including 640,000 vehicles in China. It's the largest recall VW has ever had to carry out in China -- and a potentially costly mistak
CCTV9英语新闻2013年11月
By Paul Sisco Washington, DC 19 July 2006 watch Roller Coaster report The latest roller coasters at U.S. amusement parks are now higher and faster than ever -- and more are being built. It's a boom for thrill seekers, but are these rides safe? -----
2006年VOA标准英语（七月）
Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod
VOA常速英语2013年(十月)
U.S. sales of Toyota vehicles declined nearly 9 percent in February, the first full month since the Japanese automaker suspended sales and recalled 8.5 million cars for accelerator problems. Although the concerns about the safety of Toyota's vehicles
VOA标准英语2010年(三月)
Tedahang is one of the major cold-chain logistics companies located in the Tianjin Port Area. It provides refrigerated storage, domestic shipping and container yard services, mainly for imported meat and aquatic products, and will expand its services
英闻天下