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- Water contains hydrogen and oxygen. 水含有氢和氧。
- hydrogenation preheater 加氢预热器
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- hydrogen preheater 氢气预热器
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Remarks:Applied to wall and roof of preheater etc. 主要用于预热器墙和顶盖等部位。
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- Before soldering, be sure to preheat components. 焊接前零件一定要预热。
- Preheat and Cooling functions selection. 预热及冷却功能选择。
- Preheat the oven to 180 Celsius. 烤箱预热至摄氏180度。
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Preheat oven to 350 degrees F (175 degrees C). 预热烤箱至350华氏度（175摄氏度）。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- Preheat the oven about 180degree . 把焗炉预热至180度。
- 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。
- To make toasts: Prepare grill or preheat broiler. 制作烤面包片：准备烤架或预热烤焙用具。
- 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。
- Hydrogen is a one-valence element. 氢是一价的元素。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
