space medium

例句：

1. 1. The researcher used a space medium to study the behavior of animals in the dark.
   研究者使用一种空间介质来研究动物在黑暗中的行为。
2. 2.The space medium was crucial for the successful launch of the satellite.
   空间介质对于卫星的成功发射至关重要。
3. 3.The space medium allowed for efficient communication between the astronauts and the ground control.
   空间介质使得宇航员与地面控制之间的通信变得高效。