Behrens-Fisher problem

例句：

1. 1. The Behrens-Fisher problem is aclassic example of how to solve complex systemswith multiple interacting variables.
   贝伦斯-费希尔问题是解决复杂系统，其中多个相互作用变量的经典例子。
2. 2. In the Behrens-Fisher problem,the optimal solution depends on the specific conditionsand constraints of the system.
   在贝伦斯-费希尔问题中，最优解取决于系统的特定条件和约束。
3. 3. The Behrens-Fisher problem hasbeen studied extensively in various fields, includingeconomics, engineering, and computer science.
   贝伦斯-费希尔问题在经济学、工程学和计算机科学等多个领域得到了广泛的研究。