in space

• Plasma in space are collision free .
  空间中等离子体是无碰撞的。
• A junction has no definite direction in space .
  接头在空间中没有一定方向。
• Other galaxies are placed irregularly in space .
  其它星系不规则地位于太空中。
• It became the first reusable vehicle in space .
  它成为第一个能重复使用的宇宙交通工具。
• The secondary valence is directed toward fixed positions in space .
  副介指向空间的确定位置。
• Our scientists are leading the way in space research .
  我们的科学家在宇宙探索中处于领先地位。
• The discovery marks a great advance in space technology .
  这项发现标志着空间技术向前迈进了一大步。
• It proved that winged vehicle could exist alone in space .
  它证明了有翼飞行器能够单独在太空中飞行。
• Normally a point in space is identified by means of coordinates .
  空间中的点通常是依靠座标来定位的。
• One of his feet was on the wooden floor, the other was in space .
  他的一只脚踩在地板上，另一只脚悬空。