in space

• The earth and the sun and the other planets are isolated in space .
  地球、太阳和其他行星都游离于太空之中。
• It appears that the earth was formed out of rocks floating in space .
  地球似乎是由漂游在太空中的岩石形成的。
• Nations have been more interested in defense than in space exploration .
  各国对防务已经比对探索宇宙更为关心。
• A vector quantity is an entity with a magnitude and a direction in space .
  矢量是空间中既具有大小又具有方向的量。
• In such a mode, every channel is a stream tube fixed in space .
  在这样的模型里，每根管子都是固定在空间上的一个流管。
• The succession of points occupied by the particle will trace out a curve in space .
  质点连续经过的点描绘出一条空间曲线。
• The direction of the axis changes gradually so that it traces out a cone in space .
  轴的方向逐渐在变，导致了轴的空间描绘出一个圆锥。
• In recent years, astronomers have detected many organic molecules in space .
  近年来，天文学家们已探测到在宇宙空间中的许多种有机分子。
• Particles have the property of definite localization in space and definite boundaries .
  粒子的性质是在空间有确定的位置，有清楚的边界。
• We can't foresee the time when food raised in space will directly benefit humans below .
  我们尚不能预言空间生产的食物什么时候能直接为人类受益。