natural-uranium reactor

例句：

1. 1. The natural-uranium reactor is a key component in the nuclear power industry.
   天然铀反应堆是核能工业的关键组成部分。
2. 2. The development of this reactor has greatly improved our energy efficiency.
   这种反应堆的开发大大提高了我们的能源效率。
3. 3. The natural-uranium reactor is used to produce electricity and heat for various applications.
   天然铀反应堆用于为各种应用产生电力和热能。