许多国家正在投资核能，将其作为化石燃料的更清洁替代品。

Many countries are investing in ___nuclear energy as a cleaner alternative to fossil fuels.

该地区正在就是否建造一座新的核电站进行辩论。

The construction of a new ___nuclear power plant is under debate in the region.

技术进步使得核工业更加安全高效。

Advances in technology have made the ___nuclear industry safer and more efficient.