margin department

例句：

1. 1. The company's margin department is responsible for managing the inventory and sales forecasts.
   公司的边际部门负责管理库存和销售预测。
2. 2. The government needs to address the issue of income inequality by improving the marginal income tax rate.
   政府需要通过提高边际所得税率来解决收入不平等的问题。
3. 3.The research team found that the marginal efficiency of labor was higher in the new technology sector.
   研究团队发现，新技术部门的劳动边际效率更高。