roemerite

例句：

1. 1. The roemerite deposits are a valuable resource for the mining industry.
   罗默岩矿床是采矿业的宝贵资源。
2. 2.Rare earth elements play an important role in modern technology.
   稀土元素在现代科技中起着重要作用。
3. 3.The roemerite mine is one of the largest in the world, producing high-quality rare earth metals.
   罗默岩矿是世界最大的之一，生产高品质的稀土金属。