uranous oxide

例句：

1. 1. The research team discovered a new method to extract uranium from uranium ore.
   研究小组发现了一种新的方法，可以从铀矿石中提取铀。
2. 2. Uranium is a rare and valuable element that powers nuclear reactors.
   铀是一种稀有且有价值的元素，它用于驱动核反应堆。
3. 3. The uranium oxide was used as a catalyst in the chemical process.
   铀氧化物被用作化学反应的催化剂。