发射器

例句：

1. 1. The rocket is a powerful launcher capable of reaching the moon.
   火箭是一种强大的发射器，能够到达月球。
2. 2. The satellite was launched by a small spacecraft.
   卫星是由一艘小型航天器发射的。
3. 3. The astronauts used a sophisticated transmitter to communicate with the ground station.
   宇航员们使用一种复杂的发射机与地面站进行通信。