n.火箭发射人员(火箭专家；火箭设计者)
Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
They planned to send a rocket to the moon. 他们计划向月球发射火箭。
Imagine a rocket that can travel at the rate of light! 想象一下能以光的速度飞行的火箭。
A rocket manned by trained astronauts will launch soon. 载有受过训练的宇航员的火箭马上就要发射了。
Scientists have computed the probable course of the rocket. 科学家利用计算机计算了火箭可能运行的轨道。
The rocket did one circuit of the earth and returned to base. 火箭绕地球运行一周后返回基地。
