卫星测试技术流程

US to Test Its First Automated Space Rendezvous System

By David McAlary The U.S. space agency is planning to conduct its first completely automated rendezvous in space Tuesday. In a test of new technology, a spacecraft is scheduled to be launched to track

发表于:2019-01-03 / 阅读(57) / 评论(0)

VOA2004（下）--健康科技

VOA慢速英语2015 科学家测试太阳能动力

Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s

发表于:2019-01-12 / 阅读(53) / 评论(0)

2015年VOA慢速英语(六)月

VOA慢速英语20060719b

EXPLORATIONS - Project Mercury: Soviet Successes Push U.S. to Build a Space Program From the Ground UpBy Marilyn Christiano and Frank Beardsley Broadcast: Wednesday, July 19, 2006 VOICE ONE: Explorati

发表于:2019-01-30 / 阅读(57) / 评论(0)

2006年慢速英语（七）月

VOA标准英语2010年-HIV: Verifying the Test Results

Small kits are now available similar to pregnancy tests that can determine whether a person is infected with HIV, the AIDS virus. But the tests can give a false positive reading if used incorrectly, possibly dealing an emotional or psychological blow

发表于:2019-02-06 / 阅读(50) / 评论(0)

VOA标准英语2010年(七)月

英闻天下——189 US: DPRK's Nuclear Test Will be "Mistake"

U.S. envoy Glyn Davies is calling on North Korea not to carry out a nuclear test. The call comes immediately following North Korea's vow to carry out as well as aim the tests at the US. Whether they will test it or not, we hope they don't, we call on

发表于:2019-02-21 / 阅读(52) / 评论(0)

英闻天下

留美老师带你每日说英文第324期:考试中更改答案的正确率

台湾籍旅美老师今天交给我们的句子是： Pretty much all research on sticking with your initial hunches suggests that most answer changes are from incorrect to correct, and people who change their answers usually improve their test scor

发表于:2019-02-22 / 阅读(34) / 评论(0)

留美老师带你每日说英文

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