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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。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- They planned to send a rocket to the moon. 他们计划向月球发射火箭。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- 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。
- 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
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- 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。
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- 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。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- The rocket punched its way out of the atmosphere. 火箭猛力冲出大气层。
- Water can be dissolved into hydrogen and oxygen. 水能分解成氢和氧。
- Both hydrogen and oxygen are elements. 氢和氧都是化学元素。
- We will launch the moon rocket next week . 下星期,我们将发射月球火箭。