单词：separable topological space
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Broadcast: Jan 29, 2003 By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about a space rock that
VOA2003（上）-科技导航
Welcome back to Everyday Grammar from VOA Learning English. Today we return to a very common verb form in English phrasal verbs. You will find one phrasal verb in every 192 words of written English. They will make your English sound more natural once
2017年VOA慢速英语(十二)月
Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa
VOA2003（上）-科技导航
In a recent program, we told you about phrasal verbs related to food. The program centered on eating food: what, how much and when. You will remember that a phrasal verb is a verb made of two or more words: a verb plus a preposition or adverb, or bot
2018年VOA慢速英语(六)月
Have you ever been to an airport or train station where the official language was English? What was your experience easy, difficult or in between? Today, we will explore some common phrasal verbs that can be useful as you travel to or through English
2018年VOA慢速英语(十二)月
Everyday Grammar: Our Top 10 Separable Phrasal Verbs 英语日常语法:十大可分动词 Welcome back to Everyday Grammar from VOA Learning English. Today we return to a very common verb form in English phrasal verbs. You will find one phrasal verb
2015年VOA慢速英语(十一)月
By Alex Villarreal Washington 25 October 2007 The U.S. space shuttle Discovery has docked at the International Space Station, marking the next phase in a complex mission to expand the international orbiter. VOA's Alex Villarreal reports from Washingt
2007年VOA常速英语（十月）
拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配
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BEIJING, Sept. 6 (Xinhuanet) -- The amount of space junks floating in Earth's orbit has reached a critical level, warned scientists. The future space missions may become too dangerous to fly for a risk of colliding with space junks, said a report rel
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MOSCOW, April 22 (Xinhua) -- The Russian Space Forces has re-established contact with a military satellite, Geo-IK-2, which went missing in February, local media reported Friday. According to a spokesman from the Defense Ministry(国防部) , Interfa
英语新闻
Working in Project Space One of the givens in David Allens Getting Things Done is that you cant do a project. Instead, Allen recommends you break projects down into immediate next actions, discrete doable chunks that can be cranked through with a min
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Crews at the Kennedy Space Center in Florida are preparing the Space Shuttle Discovery for its final launch, scheduled for Thursday. Among the things it will carry to the International Space Station will be a humanlike robot designed to help astronau
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BEIJING, June 16 (Xinhua) -- The successful launch of China's fourth manned spaceship paves the way for a future space station, which might subsequently benefits the world in space exploration. Shenzhou-9 spacecraft, carrying two males and one female
英语新闻
BEIJING, Sept. 21 (Xinhuanet) -- China will launch an unmanned module next week, paving the way for a planned space station, a spokesman for the space program said on Tuesday. Tiangong-1, or Heavenly Palace 1, will blast off from Jiuquan Satellite La
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The U.S. space shuttle（航天飞机） Discovery has completed its work at the International Space Station on its 39th and final mission, and is preparing for Wednesday's scheduled landing at the Kennedy Space Center in Florida. The shuttle success
英语新闻
This Friday, the U.S. space shuttle Endeavor is scheduled to lift off on its last voyage（航行） to the orbiting International Space Station. And on June 28, barring any last minute complications, Alantis will become the last space shuttle ever t
英语新闻
MOSCOW, Oct. 24 (Xinhua) -- The Russian Space Agency Roscosmos confirmed on Monday the list of next crew members who will fly to the International Space Station (ISS) on Nov. 14. Russia's Soyuz TMA-22 spacecraft will bring Russian cosmonauts Anton Sh
英语新闻
BEIJING, Nov. 13 (Xinhua) -- China has established an operation committee for management of the country's first space lab module, Tiangong-1, during its two-year orbit of earth. The committee will deal with operations planning, technical appraisal an
英语新闻
BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface. Nearly two days after it was launched, the unmanned spacecr
英语新闻
JIUQUAN, June 16 (Xinhua) -- She is a wife. She belongs to China's one-child generation. On Saturday, 33-year-old Liu Yang becomes the country's first woman entering space. The home-grown Shenzhou-9 spacecraft, atop an upgraded Long March-2F carrier
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