单词：SPD (self-powered detector)
单词：SPD (self-powered detector) 相关文章
Lesson13 Changes of Life Caused by Computers and Automobiles The computer and the automobile, the mainstays of modern life, share similar pasts. The computer, which has only recently become a common feature of most people's homes and offices, had its
背诵为王第四册
Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa
VOA2003（上）-科技导航
Two adventurers hoping to make the first round-the-world trip using a solar-powered plane have successfully landed in Oman after launching the maiden leg of their global voyage. The two Swiss pilots have arrived in Oman after taking off yesterday fro
英语新闻
Solar-Powered Plane to Fly Around the World The makers and pilots of a solar-powered plane will try to fly it around the world beginning next month. The plane is called Solar Impulse 2, or SI-2. It arrived in pieces recently in Abu Dhabi in the Unite
2015年VOA慢速英语(二)月
Powered Exoskeletons Give Assistance in Walking, Lifting Powered suits that could help paralyzed people walk and others lift and carry heavy loads with ease have been an inventor's dream since late 19th century. But they had to wait until the 21st ce
VOA标准英语2015年(七月)
It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'
国家地理2008年
As an alternative to expensive helicopters or traditional jets, some law enforcement agencies are experimenting with lightweight craft that stay airborne using just a parachute. Steve Mort | Palm Bay, Florida 01 January 2010 The Palm Bay Police Depar
VOA标准英语2010年(一月)
BEIJING: In an interesting move, China is displaying a nuclear powered attack submarine to the public to boosts the people's confidence in the country's growing naval power. This is part of efforts by the Chinese authorities to enhance the image of p
英语新闻
DEVELOPMENT REPORT - Shining a Light on Water to Prevent Infections By Jill Moss / Broadcast: Sun, 11 Nov 2007 16:00:00 UTC This is the VOA Special English Development Report. Viruses, bacteria and other organisms in dirty water sicken hundreds of m
VOA慢速英语2007年（十一）月
AS IT IS 2016-08-04 Ugandan Company Demonstrates Solar-Powered Bus 乌干达演示太阳能汽车 A bus powered by the suns energy has made its public debut. Kiira Motors Corporation demonstrated the new electric bus recently at a sports center in th
2016年VOA慢速英语(八)月
AS IT IS 2016-07-15 NASA Juno Spacecraft Sends First Photos of Jupiter 木星探测船朱诺传送第一张照片 This is Whats Trending Today. Juno is the name of the spacecraft made by NASA that is now orbiting Jupiter after a five-year journey. NA
2016年VOA慢速英语(七)月
The drive to develop a battery to power automobiles, without using petroleum, is also behind the effort to develop an electric powered airplane. New designs for electric aircraft were recently unveiled at the Experimental Aircraft Association's (EAA)
VOA标准英语2010年(八)月
India has launched its first indigenously built nuclear-powered submarine capable of firing ballistic missiles. The submarine, once in service, will give the country the capability to fire nuclear weapons from sea besides land and air. The Indian na
VOA标准英语2009年(七月)
It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'm
自然百科2008年
This is the VOA Special English Development Report. Harvest in Benin A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are
2010年慢速英语(一)月
Did you know that in general we have on the average, i guess, about 26 eletronic gadgets in our house and they are constantly all pluging them and charging them and very little that power actually goes to chargers. Some of it is just regularly runnin
英语杂谈
On August 6th a flimsy-looking pilotless aircraft, the Zephyr S, came slowly in to land at an undisclosed location in Arizona, 8月6日，一架薄得像纸一般的无人驾驶飞机Zephyr S在美国亚利桑那州的一个未知地点缓慢着陆，
经济学人科技系列
啪！电源断了，屏幕黑了！这会儿，第一反应倒不是电脑故障，而是那要了命的稿件。忘了存盘，半个下午的努力前功尽弃。I am back to square one 我得从头开始写，你说气人不气人？ 短语back t
英语口语
People flying into Indias southern city of Cochin may see numerous solar panels around Cochin International Airport. But they may not know that the airport was the first in the world to be fully powered by solar energy. A sea of shiny solar panels st
2019年VOA慢速英语(二)月