求翻译：摘要：进入二十一世纪以来，我国现代化进程不断加速，工业化、城市化程度持续提高，在此过程中失去土地的农民以及农村原有的剩余劳动力大量涌向城市，形成了户口在农村，工作在城市，退休后还将返回农村的农民工群体，据不完全统计，当前我国的农民工总数已经超过2.5亿人，这一数量庞大的群体为我国的现代化建设做出了巨大贡献。但由于历史和现实的种种原因，他们却难以享受和城市企业职工同等的社会保障权益。是什么意思？

Abstract: Since entering the 21st century, China's modernization process accelerated industrialization and urbanization degree of continuing to improve, a large number of farmers lost their land in the process as well as the original rural surplus labor force in the cities, the account in the countr

Summary: since entering the 21st century, China's modernization has been accelerating, industrialization, urbanization, in the process, the farmers lost their land as well as the rest of the labor force previously rural areas to cities, and formed a household in the rural, working in the city after

Summary: entered 21st century yilai, my modernization process constantly accelerated, industrialized, and urbanization degree continued improve, this process in the lost land of farmers and rural original of labor large Chung to city, formed has account in rural, work in%2