hydrogenium

例句：

1. 1. The chemist discovered a new type of hydrogenium compound.
   化学家发现了一种新的氢化物化合物。
2. 2.Hydrogenium is a rare element that occurs naturally in trace amounts.
   氢化物是一种稀有元素，自然中以微量存在。
3. 3.The study of hydrogenium has important implications for understanding the properties of other elements.
   研究氢化物对理解其他元素的性质的具有重要意义。