marginal cost vector

例句：

1. 1. Inthe context of economic analysis, marginal cost is a crucial factor in determining the optimal production level.
   在经济分析的背景下，边际成本是确定最优生产水平的关键因素。
2. 2.The marginal cost of producing this product has increased significantly due to rising raw material costs.
   由于原材料成本的上涨，生产这种产品的边际成本显著增加。
3. 3. Managers need to consider the impact of marginal cost on their decision-making process.
   经理们需要考虑边际成本对决策过程的影响。