求翻译：其中，农民工的养老保险问题由于实施难度大，跨越时间长，涉及关系复杂，受到的关注也额外较多。面对即将到来的老龄化高峰，党中央、国务院相继出台了一系列有关农民工养老保险的政策文件，试图尽快弥补在此方面的不足。同时，各地区结合中央所制定的政策也相继出台了符合本地实际的农民工养老保险办法，但在实施过程中，都存在着一些不足，农民工参保的积极性仍然不高。为了解决这些问题，2010年正式实施《农民工参加基本养老保险办法》对原有的政策做出了一些新的规定。本文的研究目的之一就是通过对在宁农民工的调查，了解他们对养老保险新政策的掌握程度如何。是什么意思？

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