单词：air pressure heat aging test
[网络] 加压空气热老化试验
单词：air pressure heat aging test 相关文章
The other day I saw an advert on the Internet asking for volunteers to test a new skin cream. It was an anti-aging product. How is it possible for a cream or lotion to stop us looking old? I don't think any skincare goods can make us look younger. I
听一分钟英文-A
South Korean Students Stressed Over College Entrance Exam 韩国学生对高考倍感压力 This is the VOA Learning English Education Report. More than half a million South Korean students in their final year of high school recently took the univers
2014年VOA慢速英语(十一)月
And now for the last look. Those of you who watched our recent Education Special saw the exhausting study habits of South Korean students. The culmination of that pressure was last week when almost 700 000 South Korean high school students took the t
万花筒2011年
Heavy air on this Moment of Science. Here's an oxiny question: does air weigh anything? At first it might seem preplexing, on the one hand, air just seems floating, I mean, to say something is as light as air is to say its weighlessness, is isn't? Bu
英语时差8，16
On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies,
初学者听力文摘精选
The Rolling Boil That Cools Your Food When you think of something boiling, you probably picture a pot on the stove, but theres another kitchen appliance that brings liquid to a boil, not to heat food, but cool it. It sounds crazy, but household refri
英语听力文摘 English Digest
Rats with high blood pressure benefited from a long-term diet rich in capsaicin, which gives the heat to hot peppers and starts a chemical sequence that relaxes blood vessels. Heres a possible blood pressure remedy. But its only for those who can sta
60秒科学
From VOA Learning English, this is the Health Lifestyle report. If you have been meaning to add more exercise to your daily routine, you may want to start sooner rather than later. A 2018 study has found that a lifetime of regular exercise and activi
2018年VOA慢速英语(四)月
I will finish my middle school life soon, before I graduate, I need to take part in a very important test and it will decide which high school I will be in. I am so nervous now, I want to do my best and go to the ideal high school. My mother told me
英语作文
By Ron Corben Bangkok 08 January 2007 Residents take photos in front of the International Convention Center (CICC) main venue of the Association of Southeast Asian Nations (ASEAN) summit in the central Philippines city of Cebu, 10 Dec 2006 As the le
2007年VOA标准英语（一月）
By Paula Wolfson Washington 27 September 2009 Top Obama administration officials say Iran will come under extreme pressure to disclose its nuclear intentions when envoys from Tehran sit down on Thursday in Geneva with representatives of the United S
VOA标准英语2009年(九月)
U.S. officials say a cap on a damaged oil well in the Gulf of Mexico appears to have a small leak, but they say there are no plans to remove the cap from the well. Engineers are carefully studying the well for any evidence of problems. Engineers spot
VOA标准英语2010年(七)月
A workboat pulls boom into place alongside the Pacific Responder oil skimming vessel in the Gulf of Mexico near the coast of Louisiana, 14 Jul 2010 BP has restarted a pressure test on a leaking oil well in the Gulf of Mexico to prepare for an effort
VOA标准英语2010年(七)月
A: Have you been feeling OK lately? B: My coach wants you to check my blood pressure. A: Has anyone ever told you that you had high blood pressure? B: I dont have any symptoms of high blood pressure. A: People with high blood pressure seldom know the
英语情景对话-健康
DEVELOPMENT REPORT – April 22, 2002: UN Report on Aging By Jill Moss This is the VOA Special English Development Report. The number of people over age sixty is expected to increase two times during
农业与发展
BEIJING, Jan. 26 (Xinhua) -- China on Saturday conducted a successful test flight of its first domestically made jumbo airfreighter. The Yun-20, or Transport-20, is a huge, multi-function airfreighter which can perform various long-distance air trans
英语新闻
In a new record, Beijings Environmental Protection Bureau has handed down the highest fine to a company for violating pollution standards. The utility boiler manufacturing company was fined after the citys new Air Pollution Prevention Regulation took
CCTV9英语新闻2014年05月
There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th
英国学生科学读本
世博会开幕这几天一直高温不下，仅5月1、2日两天世博园区救护车出动就达到80多次，其中接诊的26个人是中暑。中暑的英文怎么说呢？大家都知道stroke，中风，而中暑就是heat stroke。 那么，中
英语口语
NOEL KING, HOST: There is an uncomfortable irony at the center of treatment for high blood pressure. High blood pressure itself often doesn't make people feel that bad, but the medicines used to treat it can make people feel lousy, so some people don
2018年NPR美国国家公共电台4月