n.火箭發(fā)射人員(火箭專家；火箭設(shè)計(jì)者)

Our pilotless rocket enters the track of the earth. 我們把一個無人駕駛的火箭送入了地球的軌道里。

They planned to send a rocket to the moon. 他們計(jì)劃向月球發(fā)射火箭。

Imagine a rocket that can travel at the rate of light! 想象一下能以光的速度飛行的火箭。

A rocket manned by trained astronauts will launch soon. 載有受過訓(xùn)練的宇航員的火箭馬上就要發(fā)射了。

Scientists have computed the probable course of the rocket. 科學(xué)家利用計(jì)算機(jī)計(jì)算了火箭可能運(yùn)行的軌道。

The rocket did one circuit of the earth and returned to base. 火箭繞地球運(yùn)行一周后返回基地。