few-region approximation

例句：

1. 1. The engineer used a few-region approximation to calculate the stress distribution in the structure.
   工程师使用少数区域近似来计算结构中的应力分布。
2. 2.During the design phase, the team used a few-region approximation to estimate the material requirements for the project.
   在设计阶段，团队使用少数区域近似来估算项目的材料需求。
3. 3. The researcher proposed a few-region approximation to improve the accuracy of the simulation results.
   研究者提出了一个少数区域近似以提高模拟结果的准确性。