intermediate altitude communication satellite

例句：

1. 1.The satellite is designed to relay signals between two countries.
   这颗卫星设计用来在两国之间传递信号。
2. 2. The satellite was launched into orbit last year.
   这颗卫星去年发射升空。
3. 3.The satellite has been used for monitoring weather conditions in remote areas.
   这颗卫星被用于监测偏远地区的天气条件。