These we might call the main bases.

这些我们可以称之为主要基地。

With the assumption of rational expectations, Lucas felt he had " eliminated the main intellectual basis" for fiscal and monetary fine-tuning of demand.

有了理性预期的假设，卢卡斯觉得他已经“消除了需求的财政和货币微调的主要智力基础” 。