单词:viscosity printing
单词:viscosity printing 相关文章
Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars
[00:00.00]MODULE 4Great inventions [00:03.69]模块四伟大的发明 [00:07.38]Unit 1Paper and printing havebeen used for ages. [00:10.07]第一单元纸和印刷术的应用已很长时间了 [00:12.75]Listening and vocabulary2 Listen and check the
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
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
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
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
Revision4 [00:03.72]复习 [00:07.44]Fun story [00:08.18]趣味故事 [00:08.91]Would you like to see the Wild Animal School? [00:11.10]Mimi:你想不想去看我们 学校的野生动物. [00:13.30]It's very famous. [00:14.11].它非常 的出名. [
[00:04.70]Lesson 77 [00:08.25]1.Dialogue [00:12.93]Susan is asking Mrs Zhu about the development of printing in China. [00:20.30]What happened before printing was invented? [00:24.84]People had to use other ways to record information. [00:29.60]In th
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
Latina Entrepreneur Makes Mark in Printing Industry LOS ANGELES Starting a business is difficult, and women entrepreneurs can face added obstacles. But one woman business owner has found success in an industry dominated by men -- industrial-scale pri
Laws Slow to Catch Up With 3D Printing WASHINGTON As prices of 3D printers continue to fall, experts are increasingly calling for reconsideration of copyright laws that protect the owners of patents and designs. However, they also warn that overreach
There are more than 26 thousands casting companies in China, accounting for half of all the global manufacturers of casting products. But the traditional method of handmaking castings is heavily reliant on human resources and energy, and can produce
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
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
VOICE ONE: I'm Steve Ember. VOICE TWO: ''Revolt on the Amistad,'' silkscreen print by Jacob Lawrence And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in W
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
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
An employee carefully scans a man standing still behind two photographic lamps with a gun-like scanner in his hand. The whole process takes approximately 10 minutes. After loading the data into the computer, the rest work is left to the 3-D printing