单词：drill hardness testing machine
单词：drill hardness testing machine 相关文章
HEALTH REPORT-Testing for Pre-Diabetes By Nancy Steinbach Broadcast: April 17, 2002 This is the VOA Special English Health Report. American health experts say more people should be tested for a condit
健康与环境
1135 、 晶体点阵；晶体格构；晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
英文名句短语
Alice: Hello, I'm Alice Stephen: And I'm Stephen.Alice: And this is 6 Minute English! This week were talking about a very commonphobia a fear of the dentist and a possible new treatment. But first of all,Stephen, how does this sound make you feel? In
六分钟英语
(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his
英语杂谈
Improve Your English by Testing Yourself English learners can improve their ability to remember and use new words by testing themselves. This idea comes from Sarah Lynn, an educational consultant and teacher at Harvard University's Bridge Program. Sh
2016年VOA慢速英语(八)月
The goal of rapid HIV testing in emergency rooms is to save lives and prevent the spread of HIV. The U.S. Centers for Disease Control recommends routine HIV screening of patients admitted to hospital emergency rooms, unless the patient refuses or opt
VOA标准英语2010年(七)月
India Holds Large-Scale Drill for a Potential Disaster By the time the sirens sounded all around New Delhi, two months planning had been completed. In nine different parts of the city, rescue workers simulated a 7.2 magnitude earthquake 275 kilometer
VOA标准英语2012年(二月)
Technique May Eliminate Drill-and-Fill Dental Care For over a hundred years, dentists have been repairing cavities by removing the decayed tooth tissue with a drill and filling the hole with metal or plastic material. Depending on the cavitys depth,
VOA标准英语2015年(八月)
But my response to this robot was also interesting because I knew exactly how this machine worked, 但我对这个机器人的反应也非常有趣，因为我确切地知道这个机器工作的原理， and yet I still felt compelled to be kind to
TED演讲科技篇
China and Russia on Friday started joint naval drills off the coast of Russia's Far East. Seven vessels from China's North Sea Fleet and South Sea Fleet and 12 vessels from Russia's Pacific Fleet are taking part in the weeklong exercises. Participati
世界各地新闻集锦
EDUCATION REPORT - Educational Testing Service Begins New TOEFL Test By Nancy Steinbach Broadcast: Thursday, October 13, 2005 I'm Shep O'Neal with the VOA Special English Education Report. Last month,
教育与新闻
bed, deposit, field 书馆 矿床 outcrop 露头 fault 断层 vein, sean, lode 矿脉 gold reef 金矿矿脉 pocket 矿穴 reservoir 储藏 water table 潜水面，地下水面 mine 矿 stratum, layer 矿
英文语法词汇
LONDON, April 11 (Xinhua) -- The Olympic Torch has passed rigorous testing to ensure even the worst of Britain's weather will not be able to put it out, the Evening Standard newspaper said Wednesday. Two prototypes withstood 50mph winds, extreme temp
英语新闻
The Large Hadron Collider, the world's most powerful atom smasher, has gotten under way. Physicists at the European Organization for Nuclear Research, CERN, in Geneva successfully injected the first beam of particles into this colossal multi-billion
VOA标准英语2008年（九月）
Military experts in China are warning against Japan's latest drill apparently aimed at recapturing lost islands. Military expert Yin Zhuo says the drill could be preparation for future operations on the Diaoyu islands. According to Japanese media rep
英闻天下
TEHRAN, July 4 (Xinhua) -- The Iranian Islamic Revolution Guards Corps (IRGC) concluded the three-day missile drill on Wednesday with Iranian military officials warning against any military aggression on the country. On the third and last day of the
英语新闻
BEIJING, Feb. 24 (Xinhua) -- Police in Beijing municipality have performed an emergency response drill in their preparations for the country's annual legislative and political advisory sessions, a police officer said Friday. The drill was organized t
英语新闻
By Robert Berger Jerusalem 09 April 2008 Syria is beefing up security on its home front in a sign of escalating tension with Israel. As Robert Berger reports from VOA's Jerusalem bureau, there are war jitters on both sides of the border. As Israel co
VOA常速英语2008年（四月）
An independent panel of U.S. health experts is recommending that all Americans between the ages of 15 and 65 be routinely screened for HIV, the virus that causes AIDS. The HIV test would not be mandatory. But experts hope more widespread testing migh
英语新闻