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- 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。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- We can use solar energy to do many things today. 如今,我们可以利用太阳能做很多事情。
- They planned to send a rocket to the moon. 他们计划向月球发射火箭。
- They accurately predicted solar eclipses. 他们精确地预告了日蚀。
- The solar system was formed 4.5 billion years ago. 太阳系是四十五亿年前形成的。
- He gave a lecture on the use of solar energy. 他就太阳能的利用作了一场讲演。
- A mechanical model of the solar system. 太阳系仪太阳系的机械模型
- 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。
- solar rocket 太阳火箭
- The scientist is thinking of a new way of tapping the solar energy. 科学家正在设想一种新的利用太阳能的方法。
- An aircraft takeoff aided by an auxiliary jet or rocket. 助飞用喷气机或火箭帮助航空器起飞
- The number of known satellites in the solar system rose to 32. 太阳系里已知的卫星数量增加到三十二个。
- Today is her birthday according to the solar calendar. 按照阳历,今天是她的生日。
- Solar calculator shall be wrapped up in seaworthy waterproof paper. 太阳能计算器应以适于航海的防水纸包装。
- A rocket can bring back information which we could never get in any other way. 火箭能够带回我们用其他方法得不到的资料。
- We sent an unmanned rocket into earth orbit. 我们把一个无人驾驶的火箭送入了地球的轨道里。