单词：viscosity friction
单词：viscosity friction 相关文章
Now if you use the right kind of atoms and you get them cold enough, something truly bizarre happens. 如果使用正确的原子，并让其足够冷却，奇迹就会发生。 It's no longer a solid, a liquid or a gas. It enters a new state of matt
TED演讲教育篇
This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Usually, we trust common sense to solve problems. Is a runny mixture too thick? Add some fluid. Thatll make it runnier. Except when the fluid makes it th
Scientific American(二)月
232. A vocation for the vigorous 充满活力者的职业 vigor-vocational The vigor and vitality that one must possess to be a doctor is amazing. Perhaps many have the vision, but only the truly vigorous can handle such a vocation. Virtuosity is a m
胡敏托福词汇记单词
Vaccine - a planned exposure to an antigen in order that memory B lymphocytes can retain a memory for it. In practice the organism carrying the antigen is either killed or modified so that it does not
医务英语
By Heda Bayron Hong Kong 25 January 2006 South Korea's president has warned of
2006年VOA标准英语（一月）
By Mil Arcega Washington 25 May 2007 Technology and high gasoline prices are helping to coax hard-to-extract oil from California's oil fields. Production at some of the state's older oil fields is expected to dry up in about 25 years, but Chevron say
2007年VOA标准英语（五月）
As the Sino-U.S. trade dispute escalates, economists from a leading Chinese think tank have called on China to fight to the end, and not to yield to pressure. Trade frictions between China and the United States have continued to grow, as the American
2018CRI中国国际广播电台
You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high accelerations? 也许你认为青蛙能捕食昆虫是由于舌头很粘的缘故。但
2017年Scientific American(三)月
Frog Spit Behaves Like Bug-Catching Ketchup 青蛙唾液竟然类似番茄酱？ You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high acc
2017年科学美国人(七)月
By Scott Stearns white House 18 January 2007 The White House is dismissing reports of friction between Iraqi Prime Minister Nouri al-Maliki and U.S. President George Bush. VOA White House Correspondent Scott Stearns reports, the Bush administration
2007年VOA标准英语（一月）
By Peta Thornycroft 22 November 2007 The political future of Morgan Tsvangirai, the leader of Zimbabwe's divided opposition Movement for Democratic Change, is facing challenges. As Peta Thornycroft reports for VOA, many of his closest associates are
VOA常速英语2007年（十一月）
By Andre de Nesnera Washington 11 October 2007 Relations remain tense between Russia and Georgia several weeks after Georgian forces killed two Russian military officers in the Georgian separatist region of Abkhazia. In this background report from Wa
2007年VOA常速英语（十月）
By David Gollust State Department 16 July 2007 The State Department said Monday there is no rift between the Bush administration and former British Prime Minister Tony Blair over his new role as envoy for the international Middle East Quartet. Mr. Bl
2007年VOA标准英语（七月）
By Greg Flakus Houston, Texas 17 May 2007 High energy prices, coupled with rising demand, are putting pressure on the oil and gas industry worldwide. Many companies are finding and developing new, underwater fields. More than 67,000 representatives o
2007年VOA标准英语（五月）
Agriculture Report - Tomato's Genetic Secrets Are Peeled Away This is the VOA Special English Agriculture Report. Scientists have made a genetic map of the tomato. Tomatoes are second only to potatoes as the world's most valuable vegetable crop. Eigh
2012年VOA慢速英语(七)月
BEIJING, June 12 (Xinhua) -- Pressure from trade frictions has continued to increase this year for Chinese enterprises, while further challenges are expected in the future, a commerce official said. Li Chenggang, head of the Department of Treaty and
英语新闻
BEIJING, Apr. 16 (Xinhuanet) -- China and the United States will experience more trade friction in the high-end manufacturing sector, as Washington protects its domestic industries, officials said on Sunday. Friction will surely increase as China and
英语新闻
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