美国科学60秒 SSS 2013-08-21
时间：2018-12-24 作者：英语课 分类：Scientific American(八)月
It's happen to all of us, around you cellphone, your boss are saying something important, and then the connection instruction to drop out. Now a team of physicist 1 at Demag lead by A U P, has demonstrated that a new kind of radio tuner that is far more sensitive to defense 2 signals. The technique could eventually mean fewer dropped calls, better GPS coverage 3, faster WIFI, and much more detailed 4 images from a marine 5 scanners. the tuner includes a novel component 6: a tiny reflective membrane 7, just half a millimeter on the side and only a hundred nanometer seek. It functions in the xx as a capacitor, and when radio waves pass through the container, the minuscule 8 volt 9 shapes make the membrane bounds like a choppering. Laser light reflecting of the membrane and interfering 10 of itself turns the nanometer high waves into strong clear signal. The report is published on Sign Arch. The scientist are signed by how the technology might trap in the pictures by radio telescopes. But wouldn't that also be nice to actually get decent phone reception inside the parking dash
- He is a physicist of the first rank.他是一流的物理学家。
- The successful physicist never puts on airs.这位卓有成就的物理学家从不摆架子。
- The accused has the right to defense.被告人有权获得辩护。
- The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
- There's little coverage of foreign news in the newspaper.报纸上几乎没有国外新闻报道。
- This is an insurance policy with extensive coverage.这是一项承保范围广泛的保险。
- He had made a detailed study of the terrain.他对地形作了缜密的研究。
- A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
- Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
- When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。
- Each component is carefully checked before assembly.每个零件在装配前都经过仔细检查。
- Blade and handle are the component parts of a knife.刀身和刀柄是一把刀的组成部分。
- A vibrating membrane in the ear helps to convey sounds to the brain.耳膜的振动帮助声音传送到大脑。
- A plastic membrane serves as selective diffusion barrier.一层塑料薄膜起着选择性渗透屏障的作用。