氢化物

例句：

1. 1.Hydrogen is a chemical element with no known solid state.
   氢是一种化学元素，没有已知的固态。
2. 2. The reaction between hydrogen and oxygen produces water.
   氢和氧的反应产生水。
3. 3. Hydrogen fuel cells are used in electric vehicles to produce power.
   氢燃料电池用于电动汽车中产生动力。