单词:infrared sensors
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[00:04.49]home homework [00:07.92]n.家;家乡,本国a.家庭的;家乡的,本国的 n.课外作业 [00:11.34]homeogeneou honest [00:13.77]a.同种类的,同性质的,有相同特征的 a.诚实的,正直的,老实的 [00:16.20]honesty honey hono(u)r
Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this
A volcano in Iceland had been dormant for more than 180 years. But then a few weeks ago, this started. The volcano is erupting, and some scientists say it could last for more than a year. That's about how long it went the last time this happened,th
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi
One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
Aqua Technology 水资源监测科技 A new weather-monitoring satellite has been 30 years in the making, and some researchers think it's worth the wait. We'll speak with a scientist about the Aqua satellite -- on today's Earth and Sky. DB: This is Earth a
大多数四条腿动物用后腿前进,前腿停步,而研究表明,大象用四条腿来加速和刹车。 Elephants. Theyre the SUVs of the animal kingdom. Theyre big and rugged, and can carry lots of cargo. And now a study in the Proceeding
A Face Can Unlock iPhone X, But Can It Be Fooled? Apples well publicized iPhone X finally went on sale in pre-orders last week. The device will be available in Apple stores this Friday, November 3. With a starting price of $999, the iPhone X has the
There was a day, about 10 years ago, when I asked a friend to hold a baby dinosaur robot upside down. 大概10年前的一天,我让一个朋友头朝下地握持一个小恐龙机器人。 It was this toy called a Pleo that I had ordered, and I wa
By Jeff Custer Washington 05 August 2006 With backdrop of US Border Patrol keeping watch on Rio Grande River, George Bush speaks to a group about immigration policy in Mission, Texas, Aug. 3, 2006 President Bush is urging Congress to adopt an immigr
Scientists Debate, Prepare for Killer Asteroid 科学家们着手应对真实撞击地球小行星 NEW YORK Earthquakes, Tsunamis, Volcanoes. Now, add asteroids to the list of natural disasters that can threaten humanity and all life on our planet. F
By Paul Sisco Washington, DC 17 January 2007 watch Aircraft Protection report The U.S. government is attempting to address concerns that civilian aircraft are vulnerable to shoulder fired surface-to-air missiles. So it is testing a new anti-missile
As search crews continued to look for more bodies and wreckage from last week's Air France plane crash, the French carrier has decided to immediately replace suspect speed sensors with new ones on all its long-haul Airbus carriers. The speed sensors
A Canadian airport is reviewing its security systems after a woman managed to scale a barbed wire fence and run onto the tarmac in an attempt to stop a plane from taking off. 加拿大一名女子成功越过一机场的倒刺铁丝围栏后,闯入停
Recently, researchers at the Swiss Federal Institute of Technology's Institute have developped a robotic platform consisting of multiple single-propeller machines that autonomously dock with each other and take flight. Each vehicle is simply designed
You may have thought all superyachts were created equal. But according to one designer, there is a gap in the market for vessels targeted at the fairer sex. 也许你会觉得超级游艇的建造不分性别,但据一位设计师表示,市场上针
Malaria killed 435,000 people last year, most of them in Africa. 去年435,000人死于疟疾,其中大部分在非洲。 The parasite that causes the illness is carried by females of some, but not all, species of mosquitoes of the genus Anopheles.
China on track to 12 operational J-20stealth fighters in 2017 for airpower edge over other countries in Asia 中国计划在2017年部署12架J-20隐身战机以取得对其他亚洲国家的空中优势 In July 2016,the Chengdu Aircraft Corporation
Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this