How many people working in the space programme can go into space in the end?

在太空计划中工作的人最终有多少能进入太空？

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Space Policy Directive-3 lays out general guidelines for the United States to mitigate the effects of space debris and track and manage traffic in space.

《空间政策指令3》为美国制定了一般性指南，以减轻空间碎片的影响以及跟踪和管理太空交通。

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The United States space agency already uses an Aircraft Birdstrike Avoidance Radar at the Kennedy Space Center in Florida.

VOA: special.2009.04.01

It means that the properties of the system, the properties that describe the system, don't change in time or in space.

它的意思是指，用以描述系统的性质，不随时间或空间改变。

麻省理工公开课 - 热力学与动力学课程节选

For the adult learner, the technology has the capability of freeing us in terms of time and space.

对成年学习者而言，技术能够让我们免受,时间和空间的限制。

麻省理工公开课 - 媒体、教育、市场课程节选

Bowie himself acknowledged the video, tweeting, " CHRIS HADFIELD SINGS SPACE ODDITY IN SPACE!"

CNN: Astronaut sings Bowie's 'Space Oddity' in zero gravity

Students from GSP 2010 started Made In Space, a company that uses 3D printers to manufacture components for space in space.

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Dominant people tend to take up more space in the room, by splaying out their legs and feet, slouching in a chair to occupy more space in the room, and by using their arms and hands to take up more space horizontally.

FORBES: How to Detect Respect - or Disrespect: Body Language Quick Takes #7