economical effect的用法和样例：
例句
- The super large-scale cities have imponderable advantages on economic scale effect and population gathering.
超大型城市在规模经济效应和人口集聚效应上具有不可比拟的优势。 - In this paper, we will analyze the source and its economic effect of buyer power, and explain the emerging countervailing power with bilateral monopoly theory.
本文分析了买方势力的来源及其经济效应，并利用双边垄断理论解释了由此产生的抗衡势力。
