单词：safety reflector
单词：safety reflector 相关文章
The school is having a fire safety day. Read, listen and act. Fireman: A fire can happen when you're sleeping at home. When you hear the fire alarm, get up quickly. When you / they ... don't... You should ...
小学六年级英语
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
Food safety seems to be a big issue nowadays. I cant remember it being such a big problem years ago. With todays technology, it shouldnt be a problem. But it is. In fact, there are many problems. In my country, GM food is a big issue. People do not w
纯正英语一分钟
Food safety seems to be a big issue nowadays. I cant remember it being such a big problem years ago. With todays technology, it shouldnt be a problem. But it is. In fact, there are many problems. In my country, GM food is a big issue. People do not w
听一分钟英文-F
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
2016CRI中国国际广播电台
Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
HEALTH REPORT – Safety Questions About Drugs By Jill Moss Broadcast: Wednesday, December 22, 2004 I'm Gwen Outen with the VOA Special English Health Report. Several pain medicines in the United Stat
健康与经济
By Nancy Steinbach Broadcast: July 2, 2003 This is Steve Ember with the VOA Special English Health Report. Lightning is the release of electrical energy in the sky. Lightning can start fires. It also
VOA2003（下）-环境与健康
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
BEIJING, Dec. 30 (Xinhua) -- Chinese government will take strong measures against companies that break food safety regulations to ensure healthy New Year holiday and the Spring Festival that falls in mid February next year. The authorities will imple
英语新闻
New traffic rules highlight school bus safety BEIJING, Oct. 8 (Xinhua) -- Chinese police have introduced two amended traffic regulations targeting school bus safety. Under the revised regulations on the management of driving licenses, failure to give
英语新闻
BEIJING, March 29 (Xinhua) -- The State Council, China's cabinet, has approved a draft of regulations on school bus safety management, according to a statement issued Thursday. The statement, released after a State Council meeting presided over by Pr
英语新闻
BEIJING, Dec. 25 (Xinhua) -- The Ministry of Education on Tuesday issued a circular urging school safety after a fatal school van crash in east China's Jiangxi Province that killed 11 kindergarten students on Monday. The ministry called on education
英语新闻
BEIJING, Feb. 26 (Xinhua) -- China's Ministry of Education on Tuesday reiterated it will fully implement the school bus safety regulation after some local schools were not aware of the new rules. A number of illegal kindergartens are still using disq
英语新闻
China issued a set of technical standards for school buses for primary school students last year, and the drafting of another standard for buses for the kindergartners is also underway. According to the draft, the government will adopt a license syst
英语新闻
BEIJING, Feb. 9 (Xinhua) -- Chinese authorities severely punished criminals violating food safety laws in 2011, according to new figures. Sources with the State Council's Food Safety Committee said on Thursday that a total of 286 people in more than
英语新闻
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
2016CRI中国国际广播电台
BEIJING, Nov. 13 (Xinhua) -- A campaign that aims to boost the public's role in safeguarding food safety and promote awareness of the issue was launched at the 9th China Food Safety Annual Conference, which closed on Sunday. Food safety has a bearing
英语新闻