metallic hydrogen

例句：

1. 1. This new material is the first to combine both metal and hydrogen.
   这种新材料是第一个结合了金属和氢的物质。
2. 2.The discovery of this metal-hydrogen compound has sparked a new era in materials science.
   这种金属氢化合物的发现开启了材料科学的新纪元。
3. 3. Metallic hydrogen has the potential to revolutionize energy storage systems.
   金属氢具有潜力彻底改变能源存储系统。