monoenergetic cross-section

例句：

1. 1. The monoenergetic approach to energy conservation has been widely adopted.
   对能源节约采取单一方向的方法已被广泛采纳。
2. 2.The monoenergetic model of the economy is not sustainable in the long term.
   经济的单一能量模型在长期内是不可持续的。
3. 3. The company's strategy is focused on reducing costs and increasing efficiency, which is a monoenergetic approach.
   该公司的战略专注于降低成本和提高效率，这是一种单一方向的方法。